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acids and bases class test

Chemistry

6th - 8th Grade

Used 39+ times

acids and bases class test
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The correct of making a solution of acid in water is 

add water to acid
add acid to water
mix acid and water simultaneously
add water to acid in a shallow container

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

products of a neutralisation reaction are always

an acid and a base
an acid and a salt
salt and water
salt and base

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

turmeric is a natural indicator . on adding it paste to acid and base separately,which colors would be observed?

yellow in both acid and base
yellow in acid and red in base
pink in acid and yellow in base
red in acid and blue in base

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

phenolphthalein is a synthetic indicator and its colors in acidic and basic solutions,respectively are

red and blue
blue and red
pink and colorless
colorless and pink

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

when the soil is too basic plants do not grow well in it to improve its quality what must be added to the soil?

organic matter
quick lime
slaked lime
calamine solution

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

litmus is a natural dye is an extract of which of the following?

china rose
beetroot
lichen
blueberries

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

neutralisation reaction is 

physical and reversible change
physical change that cannot be reversed
chemical and reversible change
chemical change that cannot be reversed

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