Acids Bases and Salts Test

Result

Acids Bases and Salts Test - 7

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Weekly Quiz Competition

Question 1
1 / -0

If baking soda is not available in the house, what other household substance can you use to treat an ant sting?

A
Orange juice

B
Curd

C
Spinach juice

D
Washing soap
Question 2
1 / -0

Directions: Fill in the given blanks with the correct option.

When an ant bites, it injects ______ into the skin. So, ________ should be used to neutralise the effect.

A
nitric acid; sodium hydroxide solution

B
sulphuric acid; magnesium solution

C
formic acid; calamine solution

D
carbonic acid; lime
Question 3
1 / -0

Which of the following contain(s) oxalic acid?

A
Buckwheat

B
Chocolate

C
Spinach

D
All of the above
Question 4
1 / -0

From which type of plants is litmus extracted?

A
Lichens

B
Mosses

C
Ferns

D
Mints
Question 5
1 / -0

A student was mixing an acid and a base in the laboratory. He observed that the test tube became hot after mixing. What was the reason for this increase in temperature?

A
Action of the acid on glass produces heat.

B
Action of the base on glass produces heat.

C
Reaction between the acid and the base produces heat.

D
Salt formed after reaction acts on glass to produce heat.
Question 6
1 / -0

When you put a drop of limewater on a strip of litmus paper, what type of change will you observe?

A
Red litmus paper turns blue.

B
Blue litmus paper turns red.

C
No effect is there on red litmus paper.

D
None of these
Question 7
1 / -0

What is the common name of calcium oxide?

A
Bleaching powder

B
Baking soda

C
Quicklime

D
Limestone
Question 8
1 / -0

A person was asked to identify a liquid by tasting it without using an indicator. The person labelled it as a base. What taste would the person have perceived to label it as a base?

A
Sour

B
Sweet

C
Salty

D
Bitter

Question 9

1 / -0

In the table given below, match the bases in the first column with their applications mentioned in the second column.

(A) Calcium hydroxide	(i) Antacid
(B) Ammonium hydroxide	(ii) Soap
(C) Sodium hydroxide	(iii) Whitewash
(D) Magnesium hydroxide	(iv) Window cleaner

(A) - (ii), (B) - (i), (C) - (iv), (D) - (iii)

(A) - (iii), (B) - (ii), (C) - (iv), (D) - (i)

(A) - (ii), (B) - (iv), (C) - (iii), (D) - (i)

(A) - (iii), (B) - (iv), (C) - (ii), (D) - (i)

Question 10
1 / -0

What will happen if hydrochloric acid is not secreted in the stomach?

A
Digestion of proteins will be affected.

B
Digestion of fats will be affected.

C
Digestion of carbohydrates will be affected.

D
Absorption of fats will be affected.
Question 11
1 / -0

Which of the following products will be produced when hydrochloric acid reacts with sodium hydroxide?

A
Sodium chloride and water

B
Sodium dioxide and hydrogen

C
Sodium oxide and water

D
Sodium chloride, water and hydrogen
Question 12
1 / -0

Which of the following is incorrectly matched?

A
Acid Acere

B
Base Bitter taste

C
Vinegar Basic

D
Indicator Red cabbage juice
Question 13
1 / -0

Four test tubes marked as W, X, Y and Z contain acetic acid, sodium hydroxide, salt solution and limewater, respectively. Which of the following substances will help in the identification of the nature of these solutions?

A
Vinegar

B
Lime

C
Litmus

D
Baking soda

Question 14

1 / -0

Match acids given in the first column with their natural sources listed in the second column:

(A) Acetic acid	(i) Grape
(B) Citric acid	(ii) Curd
(C) Lactic acid	(iii) Vinegar
(D) Tartaric acid	(iv) Orange

(A) - (ii), (B) - (i), (C) - (iv), (D) - (iii)

(A) - (iv), (B) - (i), (C) - (ii), (D) - (iii)

(A) - (iii), (B) - (iv), (C) - (ii), (D) - (i)

(A) - (i), (B) - (iii), (C) - (ii), (D) - (iv)

Question 15
1 / -0

A strip of blue litmus paper remained blue when dipped in a solution. Which of the following may be that solution?

A
Vinegar

B
Curd

C
Soap

D
Spinach juice

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Acids Bases and Salts Test - 7

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Acids Bases and Salts Test - 7

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SHARING IS CARING

Question 1

Orange juice

Curd

Spinach juice

Washing soap

Question 2

nitric acid; sodium hydroxide solution

sulphuric acid; magnesium solution

formic acid; calamine solution

carbonic acid; lime

Question 3

Buckwheat

Chocolate

Spinach

All of the above

Question 4

Lichens

Mosses

Ferns

Mints

Question 5

Action of the acid on glass produces heat.

Action of the base on glass produces heat.

Reaction between the acid and the base produces heat.

Salt formed after reaction acts on glass to produce heat.

Question 6

Red litmus paper turns blue.

Blue litmus paper turns red.

No effect is there on red litmus paper.

None of these

Question 7

Bleaching powder

Baking soda

Quicklime

Limestone

Question 8

Sour

Sweet

Salty

Bitter

Question 9

(A) - (ii), (B) - (i), (C) - (iv), (D) - (iii)

(A) - (iii), (B) - (ii), (C) - (iv), (D) - (i)

(A) - (ii), (B) - (iv), (C) - (iii), (D) - (i)

(A) - (iii), (B) - (iv), (C) - (ii), (D) - (i)

Question 10

Digestion of proteins will be affected.

Digestion of fats will be affected.

Digestion of carbohydrates will be affected.

Absorption of fats will be affected.

Question 11

Sodium chloride and water

Sodium dioxide and hydrogen

Sodium oxide and water

Sodium chloride, water and hydrogen

Question 12

Acid Acere

Base Bitter taste

Vinegar Basic

Indicator Red cabbage juice

Question 13

Vinegar

Lime

Litmus

Baking soda

Question 14

(A) - (ii), (B) - (i), (C) - (iv), (D) - (iii)

(A) - (iv), (B) - (i), (C) - (ii), (D) - (iii)

(A) - (iii), (B) - (iv), (C) - (ii), (D) - (i)

(A) - (i), (B) - (iii), (C) - (ii), (D) - (iv)

Question 15

Vinegar