Quiz on Science Set 72

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Note: You can select only one option out of four option of each question.

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Quiz on Science Set 72 :

Question 1 :

Permanent hardness of water may be removed by the addition of:
A. Sodium Carbonate
B. Alum
C. Potassium Permanganate
D. Lime

Correct Ans: Option A

Question 2 :

Soda water contains
A. Carbonic acid
B. Sulphuric acid
C. Carbon dioxide
D. Nitrous acid

Correct Ans: Option A

Question 3 :

The most important ore of aluminum is
A. Galena
B. Calamine
C. Calcite
D. Bauxite

Correct Ans: Option D

Question 4 :

Most soluble in water is:
A. Camphor
B. Sulphur
C. Common salt
D. Sugar

Correct Ans: Option D

Question 5 :

Which of the following was to be discovered first in the chromospheres of the sun?
A. Krypton
B. Xenon
C. Neon
D. Helium

Correct Ans: Option D

Question 6 :

Which of the following is in liquid form at room temperature?
A. Lithium
B. Sodium
C. Francium
D. Cerium

Correct Ans: Option C

Question 7 :

Sodium metal is kept under:
A. Petrol
B. Alcohol
C. Water
D. Kerosene

Correct Ans: Option D

Question 8 :

Which of the following are the ingredients of gun metal?
A. Iron, Zinc and Titanium
B. Iron and Tin
C. Iron, Brass and Tin
D. Copper, Tin and Zinc

Correct Ans: Option D

Question 9 :

From which mineral is radium obtained?
A. Rutile
B. Haematite
C. Limestone
D. Pitchblende

Correct Ans: Option D

Question 10 :

What is laughing gas?
A. Nitrous Oxide
B. Carbon monoxide
C. Sulphur dioxide
D. Hydrogen peroxide

Correct Ans: Option A

Quiz Summary


Here the correct answers of every question in this quiz.

Q.1 [A],     Q.2 [A],     Q.3 [D],     Q.4 [D],     Q.5 [D],     Q.6 [C],     Q.7 [D],     Q.8 [D],     Q.9 [D],     Q.10 [A],    


Total Questions: 10
Your score:
Subject: Science
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