Chemical reactions and Equations

Chemical reactions and Equations

10th Grade

15 Qs

quiz-placeholder

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Chemical reactions and Equations

Chemical reactions and Equations

Assessment

Quiz

Chemistry

10th Grade

Medium

Created by

shebina sunil

Used 131+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1 one of the following does not happen during a chemical reaction. This is

Breaking of old chemical bonds and formation of new chemical bonds

Formation of new substances with entirely different properties

Atoms of one element change into those of another element to form new products.

Rearrangement of atoms takes place to form new products.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2. Which of the following does not involve a chemical reaction?

Digestion of food in our body

Process of respiration

Burning of candle wax when heated

Melting of candle wax on heating

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

ou are given the solution of lead nitrate. In order to obtain a yellow precipitate you should mix with it a solution of potassium -----------------------

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An acid which can decolourise purple coloured potassium permanganate solution is

Sulphuric acid

Hydrochloric acid

Citric acid

Carbonic acid

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

5.The chemical reaction between quicklime and water is characterized by

Evolution of hydrogen gas

Formation of slaked lime precipitate

Change in temperature of mixture

Change in colour of the product

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

6.The chemical equation are balanced to satisfy one of the following laws in chemical reactions. This law is known as

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

7.One of the following is an exothermic reaction. This is

Electrolysis of water

Conversion of limestone into quicklime

Process of respiration

Process of photosynthesis

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