Beta Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>BEGINNER'S BOX>Q 5

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The actual molecular mass of chlorine is:

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Important Questions on Some Basic Concepts of Chemistry

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Beta Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>BEGINNER'S BOX>Q 7

Which of the following has the maximum mass?

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Beta Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>BEGINNER'S BOX>Q 8

The volume of

1.0 g

of hydrogen at

NTP

is:

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Beta Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>BEGINNER'S BOX>Q 13

Two elements

X (atomic weight = 75)

and

Y (atomic weight = 16)

combine to give a compound having

75.8 % X

. The empirical formula of the compound is:

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Beta Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>BEGINNER'S BOX>Q 15

1.5

mol of

O_{2}

combine with

Mg

to form oxide

MgO

. The mass of

Mg

(At. mass

24

) that has combined is

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Beta Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>BEGINNER'S BOX>Q 16

What quantity of lime stone on heating will give

56 kg

of

CaO

?

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Beta Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>BEGINNER'S BOX>Q 18

0.126 g

of an acid requires

20 m L

of

0 ∙ 1 N

N a O H

for complete neutralization

E q . w t .

of the acid is

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Beta Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>BEGINNER'S BOX>Q 20

The vapour density of a compound is

45

. Its molecular formula will be-

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Beta Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>EXERCISE-I (Conceptual Questions)>Q 1

The number of atoms present in

16 g

of oxygen is