Question # 1

Tin has isotopes.

Choose an answer

9

10

11

12

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

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

One molecule of hemoglobin in heavier than one atom of hydrogen.

Choose an answer

680 times

6800 times

68000 times

680000 times

How many moles of AgCI are produced by combination of 1.0 mole of AgNO₃and 2.0 mole of NaCI

Choose an answer

1.0

2.0

3.0

4.0

A limiting reactant is one.

Choose an answer

Which is present in least amount

Which produces minimum number of moles of product

Which produces maximum number of moles product

Does not effect the amount of product.

Which is not a molecular ion.

Choose an answer

He+

CH3+

NH3-

CO+

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

Isotopes differ in.

Choose an answer

Properties which depend upon mass

Arrangement of electrons in orbitals

Chemical properties

None of these

the number of moles of CO2 which contain 8.0 g of oxygen.

Choose an answer

0.25

0.50

1.0

1.50

Bromine has isotopes

Choose an answer

2

4

8

6

The mass of two moles of electrons is

Choose an answer

1.10 mg

1.008 mg

0.184 mg

1.673 mg

the volume occupied by 1.4 of N2 at S.T.P is

Choose an answer

2.24 dm3

22.4 dm3

1.12 dm3

112 cm3

In mass spectrometry, ions are separated on the basis of.

Choose an answer

Masses only

Charge only

Change to mass ratio

Mass to charge ratio

During combustion analysis, CO2 produced is absorbed in

Choose an answer

Mg (CLO4)2

50% KOH

CaCl2

P2O5

When one mole of each of the following is completely burned in oxygen, which gives the largest mass of carbon dioxide.

Choose an answer

Diamond

C2H6

Methane

CO2

The number of moles of CO₂which contain 8.0 g of oxygen

Choose an answer

0.25

0.50

1.0

1.50

One mole of Carbon -12 has mass

Choose an answer

0.012 kg

1 kg

0.022 kg

12 kg

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

Choose an answer