Gamma Question Bank for Medical Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Assignment>Q 11

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Volume of ${CO}_{2}$ obtained at $STP$ by the complete decomposition of $9.85 g {Na}_{2} {CO}_{3}$ is

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Important Questions on Some Basic Concepts of Chemistry

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Gamma Question Bank for Medical Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Assignment>Q 12

One litre of

{CO}_{2}

is passed through red hot coke. The volume becomes

1.4 litres

at same temperature and pressure. The composition of products is

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Gamma Question Bank for Medical Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Assignment>Q 13

An organic compound containing

C

and

H

gave the following analysis

C = 40 %, H = 6.7 %

. Its empirical formula would be

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Gamma Question Bank for Medical Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Assignment>Q 14

How many litre of oxygen at

STP

is required to bum

60 g C_{2} H_{6}

?

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Gamma Question Bank for Medical Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Assignment>Q 15

For the formation of

3.65 g

of hydrogen chloride gas, what volumes of hydrogen gas and chlorine gas are required at N.T.P. conditions

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Gamma Question Bank for Medical Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Assignment>Q 16

The crystalline salt

{Na}_{2} {SO}_{4} . {xH}_{2} O

on heating loses

55.9 %

of its mass and becomes anhydrous. The formula of crystalline salt is

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Gamma Question Bank for Medical Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Assignment>Q 17

A certain amount of metal, whose equivalent mass is

28

, displaces

0.7 L

of

H_{2}

at

STP

from an acid. Mass of the element is

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Gamma Question Bank for Medical Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Assignment>Q 18

When

100 ml

of

\frac{M}{10} H_{2} {SO}_{4}

is mixed with

500 ml

of

\frac{M}{10} NaOH

then nature of resulting solution and normality of excess of reactant left is

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Gamma Question Bank for Medical Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Assignment>Q 19

Mole fraction of solvent in aqueous solution of

NaOH

having molality of

3

is