EASY
Earn 100

Magnesium hydroxide is used in making fertizers.

50% studentsanswered this correctly

Important Questions on Acids and Bases

EASY
What will be the products when an acid reacts with metals?
EASY
Draw a labelled diagram for the preparation of hydrogen gas.
EASY

What happens when: (write chemical equation only).

(i) Zinc reacts with dilute sulphuric acid

EASY
What happens when dilute Hydrochloric acid is added to iron filings?
MEDIUM
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
Draw a labelled diagram of the chemical reaction of Zn metal with dilute H2SO4.
MEDIUM
Draw labelled diagram of the reaction of metal with acid.
EASY

State one observation for the following:

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

MEDIUM
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. 
 
MEDIUM
Why should curd and sour substances not be kept in brass and copper utensils/vessels?
EASY
Why are copper and aluminium containers not used to store pickle?
MEDIUM
The acid which can produce carbon from cane sugar is:
MEDIUM
Rahul took some zinc granules in a test tube and added dilute HCl to it. He observed that the colour of zinc granules changed to.
HARD
Write word equation and then balanced equation for the reaction taking place when dilute sulphuric acid reacts with zinc granules.
HARD
When metal X is treated with a dilute acid Y, then a gas Z is evolved which burns readily by making a little explosion.
(i) Name any two metals which can behave like metal X.
(ii) Name any two acids which can behave like acid Y.
(iii) Name the gas Z.
(iv) Is the gas Z lighter than or heavier than air?
(v) Is the reaction between metal X and dilute acid Y exothermic or endothermic?
(vi) By taking a specific example of metal X and dilute acid Y, write a balanced chemical equation for the reaction which takes place. Also indicate physical states of all the reactants and products. 
EASY
State two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.
HARD
Complete and balance the chemical equation: Zn(s)+HCl(aq)
HARD
How will you test for the gas which is liberated when hydrochloric acid reacts with an active metal?
MEDIUM
State one example a reaction characterized by evolution of gas.
MEDIUM
Which gas is evolved when dilute HCl reacts with an active metal like zinc. Write a balanced equation for the chemical reaction involved.