Everyday Science MCQs

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

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. Electrophilic addition
B. Electrophilic substitution
C. Nucleophilic addition
D. Necleophilic substitution

A. Water
B. Hexane
C. Dimethylflormamide
D. Ethanol

A. Carbon=0, oxygen=0
B. Carbon= +1, oxygen= -1
C. Carbon= -1, oxygen= +1
D. Carbon=0, oxygen= -1

A. 0.20 m glucose
B. 0.20 m nacl
C. 0.15 m cacl2
D. 0.25 m sucrose

A. 53.4 grams
B. 54.4 grams
C. 55.4 grams
D. 56.4 grams