Chemistry

Question 1

Boyle’s Law

Answer 1

P is inversely proportional to V, Temperature remains constant.

Question 2

Charles Law

Answer 2

V is directly proportional to T, pressure remains constant

Question 3

Avogadro law

Answer 3

Under equal temperature and pressure, an equal volume of gases contains an equal number of molecules

Question 4

Which isotope of carbon is used in carbon dating

Answer 4

C14

Question 5

Proton was discovered by

Answer 5

Rutherford
Won nobel Prize in chemistry in 1908

Question 6

Neutron was discovered by

Answer 6

Chadwick

Question 7

In which musical note did newland put metals Co and Ni with halogens

Answer 7

Do

Question 8

The decomposition of gaseous Ammonia on a hot platinum surface is a _____ order reaction at high pressure

Answer 8

Zero

Question 9

Which element is used as catalyst in the hydrogenation process

Answer 9

Nickel
Hydrogenation is the process of adding hydrogen to an unsaturated hydrocarbon to obtain a saturated hydrocarbon.
The process of hydrogen involves and addition reaction.
Hydrogenation is also used in converting vegetable edible oils into ghee

Question 10

Formula of ammonium hydroxide

Answer 10

Nh4OH

Question 11

Formula of Baking powder

Answer 11

Calcium carbonate CaCO3

Question 12

Baking soda

Answer 12

Sodium BICARBONATE NAHCO3

Question 13

Ammonium Nitrate is used in

Answer 13

Fertilizers
NH4NO3

Question 14

Ethanol formula

Answer 14

C2H5OH

Question 15

Vinegar

Answer 15

Acetic Acid CH3COOH

Question 16

Sodium hypochlorite

Answer 16

NaClO

Question 17

Citric acid formula

Answer 17

C6H8O7

Question 18

Washing soda

Answer 18

Sodium carbonate Na2CO3

Question 19

The cooking gas is mainly a mixture of

Answer 19

Butane (C4H10) and Propane (C3H8)

Question 20

Active ingredient of clove oil

Answer 20

Eugenol

Question 21

Silicon is a

Answer 21

Metalloid
Has properties of Metals and non metals

Question 22

The cause of Redox reaction is

Answer 22

Transfer of electrons between two reactants

Question 23

Solid to liquid is called

Answer 23

Fusion

Question 24

Gas to solid is called

Answer 24

Deposition

Question 25

Palladium on barium sulphate (Pd/BaSO4) is also known as

Answer 25

Rosenmund Catalyst Used in hydrogenation of acyl chlorides to aldehydes

Question 26

The total pressure of a mixture of ideal gases is the sum of partial pressures. This is the law of

Answer 26

Dalton

Question 27

Which S block element is silvery metal that is used in an alloy with copper or nickel to make gyroscopes, springs, electrical contacts, spot welding electrodes and non sparking equipment

Answer 27

Beryllium

Question 28

Who discovered electrons

Answer 28

JJ Thomson

Question 29

Who discovered proton

Answer 29

Rutherford

Question 30

Who discovered neutron

Answer 30

Chadwick