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1.12 mL of a gas is produced at STP by t...

1.12 mL of a gas is produced at STP by the action of 4.12 mg of alcohol, ROH, with methylmagnesium iodide. The molecular mass of alcohol is

A

16 u

B

41.2 u

C

82.4 u

D

156 u

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BRILLIANT PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-LEVEL-I
  1. 1.12 mL of a gas is produced at STP by the action of 4.12 mg of alcoho...

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  2. Which of the following is a characteristic of both mixtures and compou...

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  3. A mixture of sand and iodine can be separated by

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  4. The largest number of molecules is in

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  5. Five grams of each of the following gases at 87^(@)C and 750mm pressur...

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  6. The number of moles of H(2)" in "0.224 litre of hydrogen gas at STP(27...

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  7. 7.5 grams of a gas occupy 5.6 litre of volumes at STP. The gas is

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  8. Which of the following has the largest number of atoms?

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  9. An english word,written in carbon pencil weighs 1mg. What is the numbe...

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  10. The number of atoms of oxygen present in 10.6 g of Na(2)CO(3) is

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  11. The specific heat of a metal is 0.16. Its approximate atomic weight wo...

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  12. Law of multiple proportion is illustrated by one of the following pair...

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  13. Given that the oxidation state of sulphur is -2, calculate the gram eq...

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  14. How many molecules are present in 5.23g of glucose (C(6)H(12)O(6))?

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  15. Which one of the following is the lightest?

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  16. Which of the following substance contains greatest mass of chlorine?

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  17. Mass of one atom of X is 6.66xx10^(-23)g. Hence number of mole of atom...

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  18. In a gas S and O are 50% by mass, hence,their mol ratio is

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  19. The density of C Cl(4) vapour in g"/"L at STP will be

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  20. The number of electrons present in 5.6 litre of H2 gas at S.T.P is

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  21. 10g of CaCO(3) contains

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