MDCAT 2025 Lecture 1 [DOCTORS Batch]  Relative Atomic mass For all FSc Students
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All Organic Chemistry Conversions  in one shot for Class 12
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Law of octaves by Newland  #umairkhanacademy
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Class 12 Ch#6 Transition Elements Important Short Questions @UmairKhanAcademy
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Electrochemistry Thermochemistry Chemical Energetics MDCAT Preparation Chap5 -2/2
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Thermochemistry Electrochemistry & Chemical Energetics MDCAT Preparation Chapter 5 -1/2
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MDCAT Chemical Equilibrium & Reaction Kinetics 2023
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MDCAT 2023 Preparation (Chemistry Session) Liquid Solid Gas
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Kekule's Dream to determine  structure of benzene
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Best Chemistry Channel on YouTube for FSc & NMDCAT Preparation
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online NMDCAT Chemistry Preparation by KIPS Teacher (MCQs-based Lectures & Free Practice Tests) 2022
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online NMDCAT Chemistry Preparation by KIPS Teacher (MCQs-based Lectures & Free Practice Tests) 2022
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online NMDCAT Chemistry Preparation by KIPS Teacher (MCQs-based Lectures & Free Practice Tests) 2022
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online NMDCAT Chemistry Preparation by KIPS Teacher (MCQs-based Lectures & Free Practice Tests) 2022
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If 22g of CO2 react with 34g of NH3 to form the NH2COONH4, identify the limiting reagent. MDCAT 2022
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If 22g of CO2 react with 34g of NH3 to form the NH2COONH4, identify the limiting reagent. MDCAT 2022
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Online NMDCAT Chemistry Preparation by KIPS Teacher (MCQs-based Lectures & Free Practice Tests) 2022
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Online NMDCAT Chemistry Preparation by KIPS Teacher (MCQs-based Lectures & Free Practice Tests) 2022
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A photon of greater wavelength will have ? (NMDCAT 2022 chemistry preparation)
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A photon of greater wavelength will have ? (NMDCAT 2022 chemistry preparation)
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Mass of one mole of proton is approximately equal to (NMDCAT 2022 Chemistry Preparation Chapter 2)
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Mass of one mole of proton is approximately equal to (NMDCAT 2022 Chemistry Preparation Chapter 2)
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Value of 1 amu is equal to A. 1.661×10^27g  B. 1.661×10^24g C. 6.02×10^23g D. 1/6.02×10^23g (NMDCAT)
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Value of 1 amu is equal to A. 1.661×10^27g B. 1.661×10^24g C. 6.02×10^23g D. 1/6.02×10^23g (NMDCAT)
3:50
Mass of one carbon atom is A. 12amu B. 12/NA C. 2×10-23g D. All of these (NMDCAT 2022 Preparation)
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Mass of one carbon atom is A. 12amu B. 12/NA C. 2×10-23g D. All of these (NMDCAT 2022 Preparation)
3:27
What are silicones  and why silicon lubricants are preferred over petroleum lubricants Notes class12
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Number of electrons in 1.6g of methane A. NA / 2B. NA-C. 12NAD. NA/5 (NMDCAT preparation 2022)
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Number of electrons in 1.6g of methane A. NA / 2B. NA-C. 12NAD. NA/5 (NMDCAT preparation 2022)
1:00
The largest number of molecules are present in A. 3.6g of H20 B. 4.8g of C2H5OH... (NMDCAT 2022)
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The largest number of molecules are present in A. 3.6g of H20 B. 4.8g of C2H5OH... (NMDCAT 2022)
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Empirical formula of organic compound is CH₂O & molecular mass is 60g/mol. What is molecular formula
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Empirical formula of organic compound is CH₂O & molecular mass is 60g/mol. What is molecular formula
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20.18 amu is the _____ of Ne A. Average atomic mass B. Relative atomic mass... (NMDCAT Preparation)
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20.18 amu is the _____ of Ne A. Average atomic mass B. Relative atomic mass... (NMDCAT Preparation)
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How many moles of oxygen (O2) are required for complete combustion of two moles of propane (C3H8)?
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How many moles of oxygen (O2) are required for complete combustion of two moles of propane (C3H8)?
0:59
Total number of electrons present in 34 g OH- areA. 9 NAB. 18 NAC. 10 NAD. 20 NA
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Total number of electrons present in 34 g OH- areA. 9 NAB. 18 NAC. 10 NAD. 20 NA
1:00
Maximum number of molecules will be in A.1g of H₂ B. 7 g of N₂  C. 16 g of O₂  D. 44 g of CO2 NMDCAT
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Maximum number of molecules will be in A.1g of H₂ B. 7 g of N₂ C. 16 g of O₂ D. 44 g of CO2 NMDCAT
1:00
A chemist is usually interested in A. rate B.  mechanism C. theoretical yield D. efficiency (NMDCAT)
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A chemist is usually interested in A. rate B. mechanism C. theoretical yield D. efficiency (NMDCAT)
1:00
56g of Fe react with 24g of oxygen to produce Fe2O3. Which one is limiting reactant? MDCAT 2022 MCQs
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56g of Fe react with 24g of oxygen to produce Fe2O3. Which one is limiting reactant? MDCAT 2022 MCQs
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How much gas will remain in container if 8g of oxygen (O2) react with 9g of H2. (NMDCAT 2022 MCQs)
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How much gas will remain in container if 8g of oxygen (O2) react with 9g of H2. (NMDCAT 2022 MCQs)
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What is the ratio of volume of 2g of hydrogen and 16g Methane? If both volumes are at STP
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What is the ratio of volume of 2g of hydrogen and 16g Methane? If both volumes are at STP
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An atom of carbon is twelve times heavier than______atom (NMDCAT
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An atom of carbon is twelve times heavier than______atom (NMDCAT
0:59
The relative atomic mass of Neon is 20.18 amu. What is mass of 2 moles of Neon gas.
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The relative atomic mass of Neon is 20.18 amu. What is mass of 2 moles of Neon gas.
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Theoretical yield is always less than actual yield because (NMDCAT Preparation 2022)
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Theoretical yield is always less than actual yield because (NMDCAT Preparation 2022)
1:00
From following equation, which relationship can be studied 2H2 +02 --- 2H2O (MDCAT PREPARATION)
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From following equation, which relationship can be studied 2H2 +02 --- 2H2O (MDCAT PREPARATION)
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The value of  n  in determining molecular formula is obtained from the relation. (MDCAT 2022)
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The value of n in determining molecular formula is obtained from the relation. (MDCAT 2022)
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Gas molecules are about _____far away than their diameter (MDCAT preparation 2022)
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Gas molecules are about _____far away than their diameter (MDCAT preparation 2022)
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A substance is used to absorb CO₂ gas in combustion analysis.  MDCAT 2022 Preparation
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A substance is used to absorb CO₂ gas in combustion analysis. MDCAT 2022 Preparation
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0.1 mole of Na3PO4 completely dissociates in water to produce Na+1  (NMDCAT 2022 PREPARATION)
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0.1 mole of Na3PO4 completely dissociates in water to produce Na+1 (NMDCAT 2022 PREPARATION)
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Which of the following sample contain maximum number of atoms? (NMDCAT 2022 Preparation FSc MCQs)
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Which of the following sample contain maximum number of atoms? (NMDCAT 2022 Preparation FSc MCQs)
3:11
0.25 moles of phosphoric acid produces moles of H+ ions? (NMDCAT 2022 Preparation)
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0.25 moles of phosphoric acid produces moles of H+ ions? (NMDCAT 2022 Preparation)
2:36
16g of unknown gas has volume of 11.2dm³ at STP. Unknown gas is? a. CO₂, b. CH4, c. HCI, d. 02 MDCAT
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16g of unknown gas has volume of 11.2dm³ at STP. Unknown gas is? a. CO₂, b. CH4, c. HCI, d. 02 MDCAT
3:18
The molar volume of SO₂ at RTP is A. 24dm³, B. 22.4dm³, C. 22.4cm³,      D. 100dm³ (MDCAT 2022)
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The molar volume of SO₂ at RTP is A. 24dm³, B. 22.4dm³, C. 22.4cm³, D. 100dm³ (MDCAT 2022)
3:17
18.02g of H2O sample has (MDCAT 2022 Preparation) Entry Test Preparation
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18.02g of H2O sample has (MDCAT 2022 Preparation) Entry Test Preparation
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The Avogadro's constant is the number of ? (NMDCAT 2022 Preparation) | FSc Chemistry MCQs
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The Avogadro's constant is the number of ? (NMDCAT 2022 Preparation) | FSc Chemistry MCQs
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Combustion analysis is used to determine? MDCAT 2022 Preparation. FSc Chemistry MCQs
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Combustion analysis is used to determine? MDCAT 2022 Preparation. FSc Chemistry MCQs
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One of the substance is used to absorb CO₂ gas in combustion analysis. Which is that substance MDCAT
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One of the substance is used to absorb CO₂ gas in combustion analysis. Which is that substance MDCAT
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In combustion analysis, %age of which element in always determined by difference method (MDCAT 2022)
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In combustion analysis, %age of which element in always determined by difference method (MDCAT 2022)
0:52
Mole may include ______ of the substance  expressed in grams (MDCAT 2022 Preparation)
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Mole may include ______ of the substance expressed in grams (MDCAT 2022 Preparation)
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When 1 mole of the following is completely burnt in oxygen. Which will give largest mass of CO2
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When 1 mole of the following is completely burnt in oxygen. Which will give largest mass of CO2
4:35
Number of electrons in 1.7g of OH- are A.1.2 NA  B. NA  C. 2.2 NA  D. 3.3 NA. MDCAT 2022 Preparation
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Number of electrons in 1.7g of OH- are A.1.2 NA B. NA C. 2.2 NA D. 3.3 NA. MDCAT 2022 Preparation
3:56
Stoichiometric calculations are made when
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Stoichiometric calculations are made when
0:51
Yield which reflects the efficiency of a reaction
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Yield which reflects the efficiency of a reaction
0:56
Mass of 1.505×10^23 molecules of NH3 is A.17g  B. 8.5g  C. 34g    D. 4.25g (MDCAT 2022 preparation)
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Mass of 1.505×10^23 molecules of NH3 is A.17g B. 8.5g C. 34g D. 4.25g (MDCAT 2022 preparation)
3:10
2 mole of H2S and 11.2dm³ of SO₂ at STP react. What will be no. of moles of S formed in the reaction
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2 mole of H2S and 11.2dm³ of SO₂ at STP react. What will be no. of moles of S formed in the reaction
4:39
Which of the following contains maximum number of atoms? MDCAT 2022 Preparation
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Which of the following contains maximum number of atoms? MDCAT 2022 Preparation
2:37
31g of CuCO3 on heating give 16g of CuO. what is %age yield of reaction. 80% 85% 75% 50%
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31g of CuCO3 on heating give 16g of CuO. what is %age yield of reaction. 80% 85% 75% 50%
4:42
How many molecules of NH3 form,  if 5.6 dm3 of N2 gas react with excess of H2 acc. to equation MDCAT
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How many molecules of NH3 form, if 5.6 dm3 of N2 gas react with excess of H2 acc. to equation MDCAT
7:23
Avogadro's Number is the number of molecules present in 1g, 1kg, 1dm3, 1litre. MDCAT test 2022 prep
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Avogadro's Number is the number of molecules present in 1g, 1kg, 1dm3, 1litre. MDCAT test 2022 prep
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Mg metal react with HCI to give hydrogen gas. What is min wt of HCI required to produce 6g of H₂
UMAIR KHAN ACADEMY
Mg metal react with HCI to give hydrogen gas. What is min wt of HCI required to produce 6g of H₂
3:32
Total number of electrons present in 44.82 dm3 of Ne gas are 20NA, 24NA, 30 NA, 10A. MDCAT Test 2022
UMAIR KHAN ACADEMY
Total number of electrons present in 44.82 dm3 of Ne gas are 20NA, 24NA, 30 NA, 10A. MDCAT Test 2022
2:12
6g C react with 22414 cm³ of O₂ to produce CO2. How much non-limiting reactant is in excess. MDCAT
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6g C react with 22414 cm³ of O₂ to produce CO2. How much non-limiting reactant is in excess. MDCAT
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How many moles of Mg3(PO4)2 will contain 0.25 mols of oxygen atoms. 1/6, 1/8, 1/48, 1/32 MDCAT 2022
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How many moles of Mg3(PO4)2 will contain 0.25 mols of oxygen atoms. 1/6, 1/8, 1/48, 1/32 MDCAT 2022
2:54
According to equation, how many grams of H2O is formed from mixture of 51g NH3 and 48g of O2
UMAIR KHAN ACADEMY
According to equation, how many grams of H2O is formed from mixture of 51g NH3 and 48g of O2
7:10
According to equation 4NH3+ 502 ----- 4NO+6H2O When 1mole of NH3 and 1 mol of O₂ react then
UMAIR KHAN ACADEMY
According to equation 4NH3+ 502 ----- 4NO+6H2O When 1mole of NH3 and 1 mol of O₂ react then
7:34
34.2 gram of sucrose in cup of the tea have how many number of carbon atoms. 1.2NA 2.2NA 12NA 1.1NA
UMAIR KHAN ACADEMY
34.2 gram of sucrose in cup of the tea have how many number of carbon atoms. 1.2NA 2.2NA 12NA 1.1NA
5:37
42g of N₂ react with excess of O₂ to produce NO. Amount of NO formed is  a.60g  b.32g   c.45g d.90g
UMAIR KHAN ACADEMY
42g of N₂ react with excess of O₂ to produce NO. Amount of NO formed is a.60g b.32g c.45g d.90g
10:38
Empirical formula of a hydrocarbon having 80% C and 20% of hydrogen is a.CH b.CH3 c.CH2 d.CH4 MDCAT
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Empirical formula of a hydrocarbon having 80% C and 20% of hydrogen is a.CH b.CH3 c.CH2 d.CH4 MDCAT
6:25
Aap ko Eid Mubarik
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Aap ko Eid Mubarik
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How Aqua Regia dissolve gold and platinum.
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How Aqua Regia dissolve gold and platinum.
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How does nitrogen differ from other elements of its group | 2nd year Inorganic Chemistry | Q1 Ch#4
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How does nitrogen differ from other elements of its group | 2nd year Inorganic Chemistry | Q1 Ch#4
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Octahedral geometry for NaCl how to draw
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Octahedral geometry for NaCl how to draw
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Unit cell of Sodium chloride how to draw
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Unit cell of Sodium chloride how to draw
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Unit Cell structure of NaCl full concept and drawing tricks octahedron, FCC geometry
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Unit Cell structure of NaCl full concept and drawing tricks octahedron, FCC geometry
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Seven Crystal System How to Draw with magical dots
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Plasma and Bose Einstein Condensate. 4th and 5th state of matter class 11 chemistry | Animated
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Plasma and Bose Einstein Condensate. 4th and 5th state of matter class 11 chemistry | Animated
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Van der Waal's equation for real gases Van der Waals constants a & b and their units
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Van der Waal's equation for real gases Van der Waals constants a & b and their units
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Van der Waals Equation with volume & pressure correction #shorts
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Van der Waals Equation with volume & pressure correction #shorts
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Why CO is polar while CO2 is non-polar FSc Part 2 chapter 3
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Why CO is polar while CO2 is non-polar FSc Part 2 chapter 3
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Why CO2 is gas and SiO2 is in solid state class 12
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Why CO2 is gas and SiO2 is in solid state class 12
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What is quartz, silica gel or fused quartz
UMAIR KHAN ACADEMY
What is quartz, silica gel or fused quartz
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What is Chemical Garden? Fsc part 2 chapter 3
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What is Chemical Garden? Fsc part 2 chapter 3
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Why conductivity of metal decreases with the increases in temperature &  increases for semiconductor
UMAIR KHAN ACADEMY
Why conductivity of metal decreases with the increases in temperature & increases for semiconductor
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How borax bead test is performed with its chemistry. oxidizing and reducing flame
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How borax bead test is performed with its chemistry. oxidizing and reducing flame
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Class 12 Ch#3  (Group III-A & IV-A elements)
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Class 12 Ch#3 (Group III-A & IV-A elements)
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why gases deviate from ideal behavior Class 11 chapter 3
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why gases deviate from ideal behavior Class 11 chapter 3
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Non Ideal behavior of gases class 11 chemistry - compressibility factor of gases
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Non Ideal behavior of gases class 11 chemistry - compressibility factor of gases
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Liquefaction of gases, Joule Thomson's effect, Tc Pc Vc, Linde's Method of liquefaction
UMAIR KHAN ACADEMY
Liquefaction of gases, Joule Thomson's effect, Tc Pc Vc, Linde's Method of liquefaction
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