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General Science

Physics, Chemistry, Biology & Everyday Science ยท 15 MCQs

1โ€“15 of 15 MCQs

1

The study of living organisms is called:

APhysics
BChemistry
CBiology
DGeology
2

The powerhouse of the cell is:

ANucleus
BRibosome
CMitochondria
DCell membrane
3

The chemical formula of salt (common salt) is:

ANaCl
BKCl
CCaClโ‚‚
DMgClโ‚‚
4

The hardest natural substance is:

AIron
BGold
CDiamond
DPlatinum
5

Photosynthesis occurs in which part of the plant?

ARoots
BStem
CChloroplasts (leaves)
DFlowers
6

What is the atomic number of Carbon?

A4
B5
C6
D7
7

The process of conversion of solid directly to gas is called:

AEvaporation
BCondensation
CSublimation
DMelting
8

Which vitamin prevents scurvy?

AVitamin A
BVitamin B
CVitamin C
DVitamin D
9

The SI unit of force is:

AWatt
BJoule
CNewton
DPascal
10

Which gas is responsible for the greenhouse effect?

AOxygen
BNitrogen
CCarbon Dioxide
DHydrogen
11

The nucleus of an atom contains:

AOnly protons
BOnly neutrons
CProtons and neutrons
DElectrons
12

The speed of sound in air is approximately:

A300 m/s
B340 m/s
C440 m/s
D540 m/s
13

Which organ produces insulin in the human body?

ALiver
BKidney
CPancreas
DSpleen
14

The pH value of pure water is:

A0
B5
C7
D14
15

Malaria is caused by:

ABacteria
BVirus
CProtozoan (Plasmodium)
DFungi