HARD
8th Maharashtra Board
IMPORTANT
Earn 100

Identify the following solutions, whether they are acidic or alkali.

Solution Change in indicator Acid/ Base
Litmus Phenolphthalein Methyl orange
1.  ___ No change  ___  
2.  ___ ___ Orange colour turns red  
3.  Red litmus blue ___ ____  

Important Questions on Introduction to Acid & Base

MEDIUM
8th Maharashtra Board
IMPORTANT
Write chemical names from the given formulae:
H2SO4, Ca(OH)2, HCl, NaOH, KOH, NH4OH.
MEDIUM
8th Maharashtra Board
IMPORTANT
Sulphuric acid has highest importance in chemical Industry. Why?
MEDIUM
8th Maharashtra Board
IMPORTANT
Which acid is used for getting chloride salt?
HARD
8th Maharashtra Board
IMPORTANT
By squeezing lemon on a piece of rock, the gas liberated turned lime water milky. Which compound is present in the rock?
HARD
8th Maharashtra Board
IMPORTANT
The label on the bottle of chemical is spoiled. How will you find out whether the chemical is acidic or not?
HARD
8th Maharashtra Board
IMPORTANT
Explain the difference between acid and base.
MEDIUM
8th Maharashtra Board
IMPORTANT
Why indicator does not get affected by salt?
MEDIUM
8th Maharashtra Board
IMPORTANT
Which substances are produced by neutralisation process?