EASY
10th CBSE
IMPORTANT
Earn 100

Consider the following substances:
NaCl, CaOH2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2                               

Which two substances combine to form bleaching powder?

Important Questions on Acids, Bases And Salts

MEDIUM
10th CBSE
IMPORTANT
Consider the following substances:                                               NaCl,CaOH2,NaHCO3,NH3,Na2CO3,H2O,Cl2,CO2,CaSO4.2H2O,2CaSO4.H2O,CaOCl2                                            Which four substances are utilised in the production of washing soda?
EASY
10th CBSE
IMPORTANT

Consider the following substances:                                               NaCl, CaOH2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2

Which compound represents Plaster of Paris?

EASY
10th CBSE
IMPORTANT

Consider the following substances:                                               NaCl, CaOH2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2 

Which compound is a part of baking powder?

EASY
10th CBSE
IMPORTANT

Consider the following substances:                                                                NaCl, CaOH2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2

Which compound is used as an antacid?

EASY
10th CBSE
IMPORTANT
Give one example each of a salt which gives an aqueous solution having pH less than 7.
EASY
10th CBSE
IMPORTANT
Give one example of a salt which gives an aqueous solution having pH equal to 7.
EASY
10th CBSE
IMPORTANT
Give one example of a salt which gives an aqueous solution having pH more than 7.
MEDIUM
10th CBSE
IMPORTANT
A compound X which is prepared from gypsum has the property of hardening when mixed with a proper quantity of water.
(a) Identify the compound X.
(b) Write the chemical equation for its preparation.
(c) For what purpose is it used in hospitals?