Question

Across
(2) The solution which does not change the colour of either red or blue litmus.
(4) Pherolphthalein gives pink colour in this type of solution.
(7) Colour of blue litmus in lemon juice.
Down
(1) It is used to test whether a substance is acidic or basic.
(3) It is a natural indicator and gives pink colour in basic solution.
(5) Nature of ant's sting.
(b) It is responsible for increase in temperature during a neutralisation reaction.​

Answer 1

Answer:

Across

2) Neutral

4) Acidic

7) Red

Down

1) Indicator

3) Turmeric ( Haldi)

5) Acidic ( Formic acid)

b) Exotherm