The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?
A. 1.8 gram of H2O
B. 12 moles of KMnO4
C. 0.6N H2SO4
D. 4.6 gram of C2H5OH
A. 1.8 gram of H2O
B. 12 moles of KMnO4
C. 0.6N H2SO4
D. 4.6 gram of C2H5OH
A. 5
B. 6
C. 7
D. 8
A. Distillation
B. Extraction
C. Gas chromatography
D. Column chromatography
A. Angle strain
B. Torsional strain
C. Steric strain
D. Orbital strain
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 A. Dalton’s law
B. Gay Lussac’s law
C. Henry’s law
D. Raoult’s law
A. H2CO3 – HCO3
B. H2CO3 – CO32-
C. CH3COOH – CH3COO–
D. NH2CONH2 – NH2CONH+
The main buffer system of the human blood is____________? Read More »
Chemistry Mcqs