Author: Muhammad Ali Kunbhar

A. 10 grams of H2O2 solution liberate 10 mL of O2 at STO
B. 10 gram equivalents of H2O2 liberates 10 mL of O2 at STP
C. 10 litres of H2O2 liberates 19 mL of O2 at STP
D. 1mL of solution of H2O2 liberates 10 mL of O2 at STP

Submitted by: Muhammad Ali Kunbhar

A. Ne, 4p2
B. Ar, 4s2
C. Ne, 4s2
D. Kr,4p2

Submitted by: Muhammad Ali Kunbhar

A. S-block
B. P-block
C. d-block
D. f-block

Submitted by: Muhammad Ali Kunbhar

A. 2
B. 3
C. 4
D. 5

Submitted by: Muhammad Ali Kunbhar

A. CaSO4
B. CaSO4.1/2H2O
C. CaSO4,2H2O
D. CaSO4.3H2O

Submitted by: Muhammad Ali Kunbhar

A. CaO+ SiO2——> CaSiO3
B. 2FeS+3O2——–> 2Fe+ SO2
C. FeSiO3———> FeSiO3
D. Fe2O3+ 3CO——–> 2Fe+ 3CO2

Submitted by: Muhammad Ali Kunbhar

A. Iron
B. Sodium
C. Silver
D. Zinc

Submitted by: Muhammad Ali Kunbhar

A. C
B. Zn
C. Al
D. Cu

Submitted by: Muhammad Ali Kunbhar

A. Roasting
B. Forth flotation
C. Electrolysis
D. Distillation

Submitted by: Muhammad Ali Kunbhar

A. MnO2
B. Mn2O3
C. Mn2O7
D. MnO

Submitted by: Muhammad Ali Kunbhar