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Dry hydrogen chloride gas does not turn blue litmus to red whereas hydrochloric acid does. Why?

Important Questions on Acids, Bases and Salts

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
Draw the diagram of the arrangement of apparatus used to show the reaction of zinc granules with dilute sulphuric acid and testing hydrogen gas by burning. Label the delivery tube. 
 
HARD
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels. 
 
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
Draw the diagram of the arrangement of apparatus used to show the reaction of zinc granules with dilute sulphuric acid and testing hydrogen gas by burning. Label the soap solution.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases

Which gas is produced during the reaction in the test tube? How does this gas react with calcium hydroxide/lime water?

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EASY
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
Conjugate base of HCO3- is
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
Why should curd and sour substances not be kept in brass and copper utensils/vessels?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases

State one relevant observation for of the following:

Lead nitrate solution is mixed with dilute hydrochloric acid and heated.

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
How do acids and bases react with metals? Write the reaction for each reaction.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases

Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?

EASY
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases

State one observation for the following:

A small piece of zinc is added to dilute hydrochloric acid.

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
Draw a labelled diagram of the chemical reaction of Zn metal with dilute H2SO4.
EASY
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases

Give reasons for the following statements: (i) Milk of magnesia is used for the treatment of acidity in the stomach.

EASY
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
The chemical is used in fire extinguishers.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases

Write a chemical equation for the reaction taking place in the flask. Write name and one property of the gas evolved.

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MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
A solution reacts with crushed eggshells to give a gas that turns lime-water milky. The solution contains
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
A few drops of ethanoic acid were added to solid sodium carbonate. The observation made was that 
EASY
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
What happens when dilute Hydrochloric acid is added to iron filings?
EASY
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
Why are copper and aluminium containers not used to store pickle?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
A solution reacts with crushed egg cells to give a gas that turns lime water milky. The solution contains-
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Chemical properties of acids and bases
2 ml of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube. When the contents are warmed a gas evolves which is bubbled through a soap solution before testing. Write the equation of the chemical reaction involved and the test to detect the gas. Name the gas which will be evolved when the same metal reacts with a dilute solution of a strong acid?