EASY
10th CBSE
IMPORTANT
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A universal indicator is

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Important Questions on Practicals

EASY
10th CBSE
IMPORTANT
The usefulness of a universal indicator is that
EASY
10th CBSE
IMPORTANT
The colour of a pH paper strip turned red when it was dipped into a sample. The sample could be
EASY
10th CBSE
IMPORTANT
A drop of a colourless liquid was placed on blue litmus paper. The litmus paper turned red. The liquid could be
MEDIUM
10th CBSE
IMPORTANT
Which of the following solutions would you use to test the pH of a given sample? 
HARD
10th CBSE
IMPORTANT
Solution of SO2 gas in water is acidic due to the formation of
EASY
10th CBSE
IMPORTANT
The smell of sulphur dioxide is
HARD
10th CBSE
IMPORTANT
Crystals of ferrous sulphate when exposed to air become
HARD
10th CBSE
IMPORTANT
In the reaction with acidified K2Cr2O7 solution, SO2 acts as