Chemistry One-Liners for various competitive examinations
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Here are some important Chemistry one-liners for students competing for various exams
Watch some of the important Chemistry Bits below.
1- When TEL (Tera Ethyl Lead) is added to petrol-
A-It increases the B.P of petrol
B. Increases the anti-knocking rating
C. Decreases the B.P of petrol
D. Decreased the anti-knocking rating
2-Heavy metal pollution of water is caused by-
B. Acid Plants
C. Wood Burning
D. Domestic Sewage
3-Due to rusting the weight of iron
D- remains the same
4-The oil used in the froth flotation process is
A. Pine Oil
B. Olive oil
D. Coconut oil
5-Which of the following is the main ingredient of cement?
C. Silica Clay
6-Mass number of a nucleus is
A. always more than the atomic weight
B. the sum of the number of neutrons and protons
C. always less than its atomic number
D. None of these
7- When water is added to anhydrous white copper sulfate, the color will change to
8-The macro-nutrient provided by inorganic fertilization is
A. N, P, K
B. C, N, P
C. C, Fe, B
D. Mg, Zn, Fe
9-Which of the following gases is present under the pressure in soft drinks?
(a) Carbon dioxide
(d) Nitrous oxide
10-Cement is made hard with
(a) hydration and dissociation of water
(c) Dissociation of water
11-Which one of the following metals pollutes the air of a city having a large number of automobiles?
12-Beryllium Sulphate is less soluble in water due to?
(b) Low Energy of dissociation
(c) Low inflammable energy
(d) High inflammable energy
13-The element which is commonly used in nuclear for producing electricity by nuclear fission is-
14-Which of the following is used as a lubricant in heavy machines?
15-Milk is a colloidal system in which:
(a) Water is dispersed in fat
(b) Fat is dissolved
(c) Fat and water are dispersed in each other
(d) Fat is dispersed in water
16-Who developed atom bomb?
(a) J. Robert Open Heimer
(b) Warner Wan Brown
(c) Edward Taylor
(d) Samuel Koehen
17-The enzyme that converts glucose to ethyl alcohol is-
18-The major harmful gas emitted by automobile vehicle which causes air pollution is
(a) Carbon dioxide
(c) Carbon Monoxide
(d) Ozone gas
1- b; 2- a; 3- c; 4- a; 5- b; 6- b; 7- b; 8- a; 9- a; 10- a; 11- a; 12- d; 13- a; 14- c; 15- d; 16- a; 17- b; 18- a
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