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

Science

10th Grade

Hard

Created by

Apni Pathshala

Used 1+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 2 pts

Select the appropriate state symbols of the products given as X and Y in the following chemical equation by choosing the correct option from table given below:
Zn(s) + H2SO4(l) ZnSO4(X) + H2(Y)

a. X is (s) and Y is (l)

b. X is (aq) and Y is (g)


c. X is (aq) and Y is (s)


d. X is (g) and Y is (aq)

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Consider the following chemical equation I and II
I. Mg + 2HCl MgCl2 + H2
II. NaOH + HCl NaCl + H2O
The correct statement about these equations is :

a. ‘I’ is a displacement reaction and ‘II’ is a decomposition reaction.

b. ‘I’ is a displacement reaction and ‘II’ is double displacement reaction.


c. Both ‘I’ and ‘II’ are dispalcement reactions.

d. Both ‘I’ and ‘II’ are double displacement.

3.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

To balance the following chemical equation to the values of x and y should respectively be :
2NaOH + xAl2O3 yNaAlO2 + H2O

a. 1, 4

b. 1, 2

c. 2, 4

d. 2, 3

4.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Media Image

Identify the product which represents the soild state in the above reaction:

Barium Chloride

Barium Sulphate

Sodium Chloride

Sodium Sulphate

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Strong heating of ferrous sulphate leads to the formation of a brown solid and two gases. This reaction can be categorised as:-

a. displacement and redox

b. decomposition and redox

c. displacement and endothermic

d. decomposition and exothermic

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Assertion (A): Silver bromide decomposition is used in black and white photography.

Reason (R): Light provides energy for this exothermic reaction.

Both A and R are true and R is the correct explanation of A

Both A and R are true and R is not correct explanation of A

A is true but R is false

A is false but R is ture

7.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Assertion (A): Burning of natural gases is an endothermic process

Reason (R): Methane gas combines with oxygen to produce carbon dioxide and water

Both A and R are true and R is correct explanation of A

Both A and R are true and R is not correct explanation of A

A is true but R is false

A is false and R is true

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