set 3 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 4 EXERCISES
The following question based on acids, bases, salts and metals topic of general science mcq
(a) sodium hydroxide solution
(b) acetic acid solution
(c) hydrochloric acid
(d) saturated sodium hydrogen carbonate solution
The correct answers to the above question in:
Answer: (b)
acetic acid solutions
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Read more chemistry ncert Based General Science Questions and Answers
Question : 1
Which is not a Lewis acid?
a) $BF_3$
b) $NH_3$
c) $AlCl_3$
d) $FeCl_3$
Answer »Answer: (b)
Question : 2
Match Column-I with Column-II:
Column-I (Alloy) | Column-II (Composition of Elements) |
A. Steel | P. Cu and Sn |
B. Brass | Q. Cu and Zn |
C. Bronze | R. Fe, C and Cr |
D. Magnalium | S. Al and Mg |
a) A – Q; B – R; C – S; D – P
b) A – Q; B – R; C – P; D – S
c) A–R; B–Q; C–P; D–S
d) A – R; B – Q; C – S; D – P
Answer »Answer: (c)
Question : 3
Arrange the following bases in increasing order of their, basic strength
- Sodium hydroxide
- Magnesium hydroxide.
- Aluminium hydroxide
- Ammonium hydroxide
a) 4 3 2 1
b) 4 2 1 3
c) 4 1 2 3
d) 1 2 3 4
Answer »Answer: (a)
Question : 4
The hypo solution used in photography is an aqueous solution of
a) Sodium tetrathionate
b) Sodium sulphate
c) Sodium thiosulphate
d) Ammonium per sulphate
Answer »Answer: (c)
Question : 5
Why bases are kept in glass bottles?
a) Bases are corrosive in nature
b) Bases produce OH– ions in aqueous solutions
c) Basic solutions are conducting in nature
d) Bases have soapy texture
Answer »Answer: (a)
Question : 6
Which chemical compound is present in Bleaching Powder?
a) Calcium Oxychloride
b) Calcium Carbonate
c) Calcium Hydroxide
d) Ammonium Chloride
Answer »Answer: (a)
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