Question # 1

Octane number is zero for

Choose an answer

n-Heptane

Isooctane

n-Hexane

Isoheptane

Which of the following halogens does not forms its oxyacids?

Choose an answer

Fluorine

Chlorine

Bromine

Iodine

If the solvent is inflammable for heating purpose we use

Choose an answer

Ice bath

Water bath

Wire gauze

Thermostat

Evaporation of water is

Choose an answer

An exothermic change

An endothermic change

A process where no heat changes occur

A process accompanied by chemical

The total pressure exerted by a number of non reacting gases is equal to the sum of partial pressure of the gases under the same conditions is known as

Choose an answer

Boyle's law

Charle's law

Avogadro's law

Dalton's law

A chemical reaction A B is said to be in equilibrium when

Choose an answer

Complete conversion of A to B has taken place

Conversion of A to B is only 50% complete

Only 10% conversion of A to B has taken place

The rate of transformation of A to B is just equal to rate of transformation of B to A in the system

Which of the following has greatest reducing power?

Choose an answer

HI

Hbr

HCI

HI

Oleum is

Choose an answer

Castor oil

Oil of vitriol

Fuming of H₂SO₄

None of them

The essential component of organic compound is

Choose an answer

O

C

P

N

Sea weeds are important source of

Choose an answer

Iron

Chlorine

Iodine

Bromine

The total number of protons in 10 g of calcium carbonate is (N_o = 6.023 x 10²³)

Choose an answer

1.5057 x 10²⁴

2.0478 x 10²⁴

3.0115 x 10²⁴

4.0956 x 10²⁴

More Classes

Other Links

NAT I Engineering Chemistry 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