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प्रश्न
Fill in the cross word given in figure with the help of the clues provided.

Across
(2) The solution which does not change the colour of either red or blue litmus.
(4) Phenolphthalein 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.
(6) It is responsible for the increase in temperature during a neutralisation reaction.
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उत्तर
Across
2. Neutral
4. Base
7. Red
Down
1. Indicator
3. Turmeric
5. Acidic
6. Heat
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संबंधित प्रश्न
A solution turns red litmus blue. Its pH is likely to be ______.
Ammonia is found in many household products, such as window cleaners. It turns red litmus blue. What is its nature?
Name the gas evolved when dilute HCl reacts with sodium hydrogencarbonate. How is it recognised?
Name one natural source of the following acid:
Oxalic acid
State some of the uses of mineral acids in industry.
What colour does phenolphthalein indicator turn when added to an alkali (such as sodium hydroxide)?
What is the difference between : An alkali and a metal hydroxide?
Choose the correct answer from the options given below:
Benzoic acid is used for/in/as
Name the positive ion formed When an acid is dissolved in water.
Exlain the following:
\[\ce{H3PO3}\] is not tribasic acid.
