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1
A solution turns red litmus blue, Its pH is likely to be __________________
4
5
10
2
Basic salts are formed by neutralisation of _________________
Strong acid and strong base
Strong acid and weak base
Weak acid and weak base
Strong base and weak acid
3
What is the chemical formula of sodium bi - carbonate ?
Which of the following is Acidic Salt ?
Aluminum chloride
Sodium chloride
Sodium carbonate
Potassium nitrate
stands for:
Berylium hydroxide
Barium hydroxide
Boron hydroxide
Bismuth hydroxide
6
An aqueous solution of the salt is acidic in nature. Which of the following acids and bases react to give this salt?
Weak acid and strong base
7
Given below is a general equation of a reaction between an acid and a base:
Which of the following is the Cation part of salt?
X
OH
H
Y
8
Which one of the following is not applicable for bleaching powder?
Used for bleaching wood pulp
Used for disinfecting drinking water
Used as an oxidising agent in many chemical industries
Used for softening hard water
9
Which of the following gases is produced at the Anode in the chlor-alkali process?
Hydrogen
Sulphur
Oxygen
Chlorine
11
Bleaching powder is chemically represented as
12
In the chemical formula of Plaster of Paris how many molecule(s) of water crystallization is/are attached to one molecules of calcium sulphate?
1/4
1/2
1/6
1/5
13
Potash alum, which is used to separate the suspended particles from water, is a double salt of ________________
Potassium and sodium
Aluminium and calcium
Potassium and aluminium
Aluminium and barium
14
Bleaching powder is soluble in cold water giving a milky solution due to -
Available chlorine atoms
Lime present in it
Calcium carbonate formation
The absorption of carbon dioxide from atmosphere
15
______________ plants can tolerate a wide range of soil pH ?
Potato
Tomato
Blue berries
Graps