(a) Red
(b) Black
(c) Green
(d) Blue
Answer:
Which one of the following is responsible for blue baby syndrome
(a) Nitrate
(b) Arsenic
(c) Lead
(d) Fluoride
Answer:
Which one of the following is not an essential micronutrient for plants?
(a) Zinc
(b) Boron
(c) Sodium
(d) Copper
Answer:
Which of the following alloy is used for making magnets for hearing aids
(a) Monel metal
(b) Alinco
(c) Invar
(d) German silver
Answer:
Which of the following is not a noble gas?
(a) argon
(b) Neon
(c) Hydrogen
(d) Helium
Answer:
The chromatography technique was developed by
(a) Victor grignard
(b) Liebig
(c) Soxhlet
(d) Tswett
Answer:
Molecule in which the distance between two adjacent carbon atoms is longest in
(a) Benzene
(b) Ethyne
(c) Ethane
(d) Ethene
Answer:
A mixture of water and NaCl can be separated by
(a) Filtration
(b) Decantation
(c) Fractional distillation
(d) Sublimation
Answer:
Which type of isomerism is shown by diethyl ether and methyl propyl ether
(a) Metamerism
(b) Position
(c) Chain
(d) Functional
Answer:
Cyanogen on hydrolysis with dil. HCl gives
(a) Glycol
(b) Oxalic acid
(c) Formic acid
(d) Acetic acid
Answer: