MEDIUM
10th CBSE
IMPORTANT
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What happens when sodium hydroxide solution is heated with zinc metal? Write the test for the gas evolved.

Important Questions on Acids, Bases and Salts

MEDIUM
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 2 - Acids, Bases and Salts>MOCK TEST>Q 24
Which gas is evolved when dilute HCl reacts with an active metal like zinc. Write a balanced equation for the chemical reaction involved.
MEDIUM
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 2 - Acids, Bases and Salts>MOCK TEST>Q 25
When a white powder was mixed with dilute acid a colourless, odourless gas was produced which can turn lime water milky. Identify the white powder.
EASY
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 2 - Acids, Bases and Salts>MOCK TEST>Q 26
Which of the following would turn red litmus into blue?
MEDIUM
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 2 - Acids, Bases and Salts>MOCK TEST>Q 27
A solution in test tube 'A' turns red litmus blue, evolves hydrogen on reaction with Zn and does not react with sodium carbonate whereas solution in test tube 'B' turns blue litmus red, liberates hydrogen on reaction with Zn and CO2 with Na2CO3. Identify solution 'A' and 'B'.