Full Book

1

Which of the following best describes polymers?

A Low molecular weight compounds B Simple salts C Long-chain molecules D Metal alloys

2

Which polymer is used to make plastic bottles?

A PET B PVC C Nylon D Teflon

3

What is the molecular formula of ethene?

A C2H6 B C2H4 C C2H2 D C3H6

4

Which method is used to prepare insoluble salts?

A Evaporation B Precipitation C Crystallization D Neutralization only

5

Everyday use of esters includes:

A Cooking fuel B Flavoring agents C Bleaching D Rust prevention

6

Which gas is released when carboxylic acid reacts with bicarbonate?

A Hydrogen B Oxygen C Carbon dioxide D Nitrogen

7

Atomic theory mainly deals with:

A Cells B Molecules and atoms C Planets D Rocks

8

Which salt is used in medicine as saline?

A Sodium chloride B Potassium nitrate C Copper sulfate D Silver chloride

9

Which of the following is an example of condensation polymer?

A Polythene B PVC C Nylon-6,6 D Polystyrene

10

Which suffix is used for alkynes?

A -ane B -ene C -yne D -ol

11

In electroplating using the same electrode, the anode is:

A Inert B The metal to be deposited C Plastic rod D Carbon rod

12

Which polymer is used for making electrical insulation?

A PVC B Rubber C Nylon D Cellulose

13

Which catalyst is used in the Contact process?

A Iron B Nickel C Platinum or vanadium(V) oxide D Copper

14

Which salt is soluble in water?

A Barium sulfate B Silver chloride C Lead sulfate D Sodium chloride

15

Which property makes esters suitable for perfumes?

A High acidity B Pleasant smell C High reactivity D Strong basicity

16

In a galvanic cell, electrons flow from:

A Cathode to anode B Anode to cathode C Salt bridge to electrodes D Electrolyte to electrodes

17

According to Arrhenius theory, an acid is a substance that produces:

A OH⁻ ions in water B H⁺ ions in water C Salt in water D Electrons

18

Early humans first learned about materials mainly through:

A Laboratory experiments B Trial and error C Scientific instruments D Atomic theory

19

Which substance acts as oxidizing agent in Daniell cell?

A Zinc B Copper C Cu²⁺ ions D Zn²⁺ ions

20

The electrode where reduction occurs is called:

A Anode B Electrolyte C Cathode D Salt bridge

21

Alkenes are generally insoluble in:

A Organic solvents B Benzene C Water D Ether

22

The lightest fraction obtained from petroleum is:

A Petrol B Diesel C Refinery gas D Fuel oil

23

Which bond links amino acids in proteins?

A Hydrogen bond B Ionic bond C Peptide bond D Glycosidic bond

24

Which hydrocarbon has the highest degree of unsaturation?

A Alkane B Alkene C Alkyne D Cycloalkane

25

Which salt turns blue litmus red?

A Neutral salt B Basic salt C Acidic salt D Double salt