A. 64.5%
B. 65.6%
C. 63.5%
D. 61.5%
What is the mass percent of silver in silver notrate, AgNO3? Read More »
Chemistry Mcqs A. 74% Fe
B. 75% Fe
C. 77% Fe
D. 78% Fe
A. C2H6O
B. C6H18O3
C. C6H12O6
D. C2H5O
A. C2H4
B. C3H6
C. C4H8
D. C5H10
A. this acid, in ancient times, was used to eliminate ant-hills
B. this corrosive acid is secreted by ants to drive away their enemies
C. this acid was first obtained by the distillation of ants
D. ants are attracted by the odour of this acid
A. 30 KJ
B. 1 KJ
C. 39 KJ
D. 29 KJ
The heat energy produced when the human body metabolises 1 gram of fat is__________? Read More »
Chemistry Mcqs A. Greenhouse effect
B. Fire in coal mines
C. Dry farming
D. Monsoon
Which of the following phenomenon is considered responsible for Global Warming? Read More »
Chemistry Mcqs A. p-electrons in Ne(Z = 10)
B. s-electrons in Mg(Z = 12)
C. d-electrons in Fe(Z = 26)
D. p-electrons in CI(Z = 17)
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of____________? Read More »
Chemistry Mcqs A. smelting
B. roasting
C. calcinations
D. froth floatation
A. H2 at -73oC
B. CH4 at 300 K
C. N2 at 1,027oC
D. O2 at 0oC
The molecules of which gas have highest speed? Read More »
Chemistry Mcqs