NSO Level 1- Science Olympiad (SOF) Class 8: Questions 632 - 638 of 1076

Access detailed explanations (illustrated with images and videos) to 1076 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

Question number: 632

» Combustion and Flame

Edit
MCQ▾

Question

The ignition temperature of an inflammable substance would be

Choices

Choice (4) Response

a.

Medium

b.

Low

c.

Less than zero

d.

High

Question number: 633

» Metals and Non-Metals

Edit
MCQ▾

Question

A metal which is not malleable is

Choices

Choice (4) Response

a.

Platinum

b.

Copper

c.

Arsenic

d.

Aluminium

Question number: 634

» Combustion and Flame

Edit
MCQ▾

Question

Sodium is stored in kerosene. The reason is

Choices

Choice (4) Response

a.

Ignition temperature of sodium is lower than room temperature

b.

It undergoes spontaneous combustion in room temperature

c.

It reacts vigorously with water.

d.

All a. , b. and c. are correct

Question number: 635

» Metals and Non-Metals

Edit
MCQ▾

Question

Electric wires are coated with insulating material. The reason is

Choices

Choice (4) Response

a.

A and b are the explanation of c

b.

Metals are good conductors of electricity

c.

To safeguard from electric shock

d.

Electric wires are made up of metals

Question number: 636

» Metals and Non-Metals

Edit
MCQ▾

Question

Metals are generally solids. But ________ metal is in liquid state

Choices

Choice (4) Response

a.

Gallium

b.

Lead

c.

Beryllium

d.

Mercury

Question number: 637

» Reproduction in Animals

Edit
MCQ▾

Question

The method of fertilisation seen in reptiles and birds is called

Choices

Choice (4) Response

a.

Internal fertilisation

b.

External fertilisation

c.

False fertilisation

d.

None of the above

Question number: 638

» Reproduction in Animals

Edit
MCQ▾

Question

Internal fertilisation takes place

Choices

Choice (4) Response

a.

Outside the female body

b.

Inside the female body

c.

Outside the male body

d.

Inside the male body

Developed by: