Question # 1

Nickel has isotopes

Choose an answer

3

5

6

11

One mole of Carbon -12 has mass

Choose an answer

0.012 kg

1 kg

0.022 kg

12 kg

The ration of number of molecules of 2 g H2 g to number of molecules of 64 g gaseous oxygen is.

Choose an answer

1:1

1:2

1:32

1:4

Actual yield is mostly less than the theoretical yield due to the reason that

Choose an answer

Rates of reactions are slow

Loss of the product during handling

Reactions are never completed 100%

Law of conservation of mass is not true

A glass is full of water and contains 6.02 x 10²³molecules of H2O The mass of water molecules is.

Choose an answer

18 gm

90 g

120 g

180 g

I molar volume of a gas at S.T.P is occupied by

Choose an answer

1 g of gas

6 x 10²³g of gas

22.4 m³of gas

1 gram molecular mass of gas

The smallest collection of ions in an ionic compound is called.

Choose an answer

Formula unit

Chemical formula

Formula mass

Molecular formula

Tin has Isotopes

Choose an answer

7

9

11

5

The number of electrons in one mole of hydrogen gas is.

Choose an answer

6.02 x 10²³

12.04 x 10²³

Only two

Indefinite

CO+ is an example of.

Choose an answer

Free radical

Cationic molecular ion

Anionic molecular ion

Stable molecule

How many moles of water results by burning 4 mole of H2 with excess of oxygen.

Choose an answer

1 mol

2 mol

3 mol

4 mol

The number of H2O molecules in 9 grams of ice is

Choose an answer

3.01 x 10²³

6.02 x 10²³

6.02 x 10⁸

12.04 x 10²³

A limiting reactant is that one which

Choose an answer

Gives greatest number of moles of products

Gives least number of moles of products

Is left behind after the completion of reaction

Is mostly a cheaper substance as compared to other reactants

The total number of protons and neutrons present in the nucleus of an atom is called.

Choose an answer

Mass number

Atomic number

Molecular mass

Relative atomic mass

The largest number of molecule are present.

Choose an answer

3.6 g of H2O

4.6 g of C2H5OH

2.8 g of CO

5.4 g of N2O5

How many atoms are present in half mol of oxygen gas. Gas exist in diatomic state.

Choose an answer

3.01 x 10²³

6.02 x 10²³

2 x 10²³

1.003 x 10²³

Which one of the following substances is used as water absorber in combustion analysis.

Choose an answer

Mg(CIO4)2

50% KOH

Lime water

Dilute solution of NaOH

More Classes

Other Links

Chemistry Fsc Part 1 Chapter 1 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer