Chemical Substances & Processes

Chemical Substances & Processes

7th Grade

10 Qs

quiz-placeholder

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Chemical Substances & Processes

Chemical Substances & Processes

Assessment

Quiz

Science

7th Grade

Medium

NGSS
MS-PS1-5

Standards-aligned

Created by

Aarti Chopra

Used 419+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The chemical formula of Calcium Chloride is-

CaCl2

Ca2Cl

CaCl

None

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is not a pure substance?

Iron

Rain water

Air

Oxygen gas

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The symbol of carbonate ion is -

CO3

CO3-2

CO2-3

CO32+

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

When iron rod is dipped in copper sulphate solution the following observations can be observed-

The change of colour of solution from red to blue and brown coating on iron nail

The change of colour of solution from green to blue and grey coating on iron nail.

The change of colour of solution from blue to green and brown coating on iron nail

The change of colour of solution from blue to green and black coating on iron nail

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is not a chemical change?

Photosynthesis

Digestion of food

Respiration in plants and animals

Breaking of glass

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The products of Neutralisation reaction are-

Acid, water

Base, salt

Base, water

Salt, water

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Fe (s) + CuSO4 -> FeSO4 + Cu.

This is _______________ reaction.

Addition reaction

Displacement reaction

Decomposition reaction

Neutralization reaction

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