Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 5>Q 45

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If all the oxygen atoms present in $4$ moles $H_{2} {SO}_{4},$ $2$ moles $P_{4} O_{10}$ and $2$ moles ${NO}_{2}$ are collected for the formation of $O_{2}$ gas molecules. Calculate the volume of $O_{2}$ gas formed at $2 atm$ pressure and $273 k$ temperature.

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Important Questions on Some Basic Concepts of Chemistry

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Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 5>Q 46

The numerical value of

\frac{N}{n}

(where,

N

is the number of molecules in a given sample of gas and

n

is the number of moles of the gas) is

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Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 5>Q 47

One gram equimolecular mixture of

{Na}_{2} {CO}_{3}

and

{NaHCO}_{3}

is reacted with

0.1 N HCl

, the millilitres of

0.1 N HCl

required to react completely with the above mixture is

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Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 5>Q 48

100

millimoles of dichloroacetic acid

({CHCl}_{2} COOH)

can neutralize how many moles of ammonia to form ammonium dichloroacetate?

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Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 5>Q 49

${HNO}_{3}$ oxidizes ${NH}_{4}^{+}$ ions to nitrogen and itself gets reduced to ${NO}_{2}$ . The number of moles of ${HNO}_{3}$ required by $1 mol$ of ${({NH}_{4})}_{2} {SO}_{4}$ is

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Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 5>Q 50

0.14 g

of a substance when burnt in oxygen yields

0.28 g

of oxide. The substance is -

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Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 5>Q 51

Two solutions of a substance (non-electrolyte) are mixed in the following manner:

480 mL

of

1.5 M

first solution

+ 520 mL

of

1.2 M

second solution. What is the molarity of the final mixture?