Science MCQs

Practice multiple choice questions with instant feedback. Select an option to see if you're correct.

Total Questions
2100
Page 3 of 210
Question 21 Easy

The actual location or place where an organism lives and reproduce is ____?

A
Habitat
B
Ecosystem
C
Community
D
Population
Question 22 Easy

The following are the methods to purify water except?

A
Filtration
B
Distillation
C
Crystallization
D
Chlorination
Question 23 Easy

The property decides the order of elements in the modern periodic table is ____?

A
The number of neutrons in the nucleus
B
The number of electrons in the outermost shell
C
The number of protons \(atomic number\\)in the nucleus
D
The atomic mass of the element
Question 24 Easy

Nuclei having the same nuclear charge but different masses are called ____?

A
Isobars
B
Isotopes
C
Isoelectronic
D
Isomers
Question 25 Easy

The function of oesophagus in digestive system is to ____?

A
Absorb nutrients from food
B
Mix food with digestive enzymes
C
Pass the food to the Stomach
D
Store food temporarily
Question 26 Easy

During the breathing process diaphragm play a key role, where does diaphragm move during inhalation?

A
Move upwards
B
Move sideways
C
Remains stationary
D
Move downwards
Question 27 Medium

T.B is an infectious bacterial disease caused by Mycobacterium, which of the following is not symptom of TB?

A
Fever
B
Chest pain
C
Sweating at night
D
Weight gain
Question 28 Easy

In modern periodic table, how many periods are there?

A
7
B
8
C
9
D
6
Question 29 Easy

The SI unit of Electrical Resistance is _____?

A
Volt
B
Ohm
C
Ampere
D
Farad
Question 30 Easy

The phenomenon of dispersion light can be observed experimentally by passing a white light through ____?

A
Lens
B
Prism
C
Mirror
D
Grating
Showing 21-30 of 2100 questions

Quick Stats

Total Questions 10900
easy 5797
medium 2983
hard 2120

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Did You Know?

Practice Makes Perfect

Regular practice with MCQs can improve your test-taking speed and accuracy by up to 40%.

Active Recall

MCQs engage active recall, which is 50% more effective for long-term memory than passive reading.