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ACID BASES INDICATORS

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the name of the acid HNO3

a)

Hydro nitirc acid

b)

Nitric acid

c)

Nitroxy acid

d)

Nitrate acid

2.

Oxalic acid is present in which of the given substances

a)

Milk

b)

Curd

c)

Spinach

d)

Ant's sting

3.

Which of the following is not an acid?

a)

Ammonia solution

b)

Vinegar

c)

Tomato

d)

Citrus fruits

4.

What do acids do to red litmus paper?

a)

Turn it Blue

b)

Turn it pink

c)

No change

d)

Turn it Green

5.

From the below options, which one is not an olfactory indicator?

a)

onion

b)

Lichen

c)

Clove oil

d)

vanilla

6.

If a solution is acidic, and you are using the indicator methyl orange, what color would you see?

a)

yellow green

b)

reddish pink

c)

blue

d)

orange

7.

indicators are substances that help us ..... whether the the given solution is acidic or basic

a)

detect

b)

remove

c)

throw

d)

find

8.

we can make natural indicators from these, except

a)

turmeric

b)

hibiscus flower

c)

red cabbage

d)

water

9.

When china rose indicator was added to lime water, what colour change will be detected?

a)

green

b)

dark pink

c)

reddish pink

d)

no colour change

10.

A turmeric paper was fist dipped in a washing soda solution, then the same turmeric paper was dipped in HCl. What will be the final colour of the turmeric paper?

a)

brownish red

b)

no colour change

c)

yellow colour

d)

Data given not sufficient