Acids, Bases and Salts

1.

Multiple Choice

45 sec

1 pt

What are acids?

Acids are substances that taste sweet, can dissolve metals (depending on the type of acid) and are acidic in nature.

Acids are substances that taste sour, can dissolve metals (depending on the type of acid) and are acidic in nature.

Acids are substances that taste sour, can dissolve metals (depending on the type of acid) and are basic in nature.

2.

Multiple Choice

45 sec

1 pt

What are Bases?

Bases are substances that are bitter in taste, feel soapy when touched and are acidic in nature.

Bases are substances that are sour in taste, feel soapy when touched and are basic in nature.

Bases are substances that are bitter in taste, feel soapy when touched and are basic in nature.

Acids are substances that are bitter in taste, feel soapy when touched and are basic in nature.

3.

Multiple Choice

45 sec

1 pt

What are the substances used to test whether another substance is acidic or basic in nature?

Spoon

Bases

Acids

Indicators

4.

Multiple Select

45 sec

1 pt

Choose all the substances that are acids.

Ant's Sting

Window Cleaner

Tamarind

Curd

5.

Multiple Choice

45 sec

1 pt

Which one of these is an indicator?

Litmus Paper

Orange Juice

Shampoo

Lotion

6.

Multiple Choice

45 sec

1 pt

Where is litmus solution extracted from?

Litmus Paper

Lichen

Oranges

Acids + Bases

7.

Multiple Choice

45 sec

1 pt

What is the process of Acid and Bases mixed together called?

Explosion

Indication

Inflamation

Neutralisation

8.

Multiple Choice

45 sec

1 pt

What can be applied to neutralise an ant's sting?

Milk of Magnesia

Calamaline Solution

Lime Water

Ammonium Hydroxide

9.

Multiple Choice

45 sec

1 pt

What new substance in formed during nuetralisation?

Sugar

Salt

Lemon Juice

Curd

10.

Multiple Choice

45 sec

1 pt

What type of acid helps us digest our food everyday?

Tartaric Acid

Acidic Acid

Hydrochloric Acid

Lactic Acid?

11.

Multiple Select

45 sec

1 pt

Choose all the Bases in the given choices:

Calcium Hydroxide

Oxalic Acid

Pottasium Hydrodixe

Ascorbic Acid

12.

Fill in the Blank

45 sec

1 pt

Fill in the blank.

___________ turn Blue Litmus into Red.

13.

Fill in the Blank

45 sec

1 pt

_________ turns Red Litmus blue.

14.

Multiple Select

45 sec

1 pt

Choose all of the following that can be used as indicators.

Litmus Paper

Coffee Powder

Hibiscus (China Rose)

Turmeric

15.

Multiple Choice

45 sec

1 pt

Read the following and answer the question.

A factory releases all it's waste, that is, harmful acids into bodies of water.The waste needs to be released immediately. But, there are organisms living inside the water too. Which one of these is the correct solution?

Clear out all living organisms inside the body of water. Then, release the factory waste.

Release all the waste immediately.

Add Bases to neutralise the waste.

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