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) Dead burnt plaster and gypsum
(b) Both the above
(c) Lime water and milk of lime
(d) None of the above
The correct answers to the above question in:
Answer: (c)
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Read more chemistry ncert Based General Science Questions and Answers
Question : 1
Which one of the following is coated on the photographic plate?
a) Silver bromide
b) Silver chloride
c) Silver oxide
d) Silver iodide
Answer »Answer: (a)
Question : 2
Which of the following acid do not contain Oxygen?
a) Sulphuric Acid
b) Hydrochloric Acid
c) Nitric Acid
d) All of the above
Answer »Answer: (b)
Question : 3
Which of the following statements regarding oxidation and reduction are correct?
- In oxidation, loss of electron takes place whereas in reduction, gain of electron takes place.
- In oxidation, gain of electron takes place whereas in reduction, loss of electron takes place.
- Oxidizing agent decreases the oxidation number but reducing agent increases the oxidation number.
- Oxidizing agent increases the oxidation number but reducing agent reduces the oxidation number.
a) 2 and 3
b) 1 and 3
c) 2 and 4
d) 1 and 4
Answer »Answer: (d)
Question : 4
The reaction of metal with acid results in the formation of–
a) only salt
b) both salt and hydrogen gas
c) only hydrogen gas
d) none of these
Answer »Answer: (b)
e.g. Na + HCl ⟶ NaCl + $1/2H_2$
Question : 5
Match Column-I with Column-II:
Column-I | Column-II |
A. Titanium | P. Coinage metal |
B. Palladium | Q. Fuel |
C. Uranium | R. Catalyst |
D. Platinum | S. Strategic metal |
a) A – R; B – S; C – Q; D – P
b) A – S; B – R; C – Q; D – P
c) A – P; B – R; C – Q; D – S
d) A – S; B – Q; C – R; D – P
Answer »Answer: (b)
Question : 6
Universal indicator solution is named as such because
a) it has a universal appearance
b) it can be used for entire pH range
c) it is available universally
d) all the above are correct
Answer »Answer: (b)
It can be for entire pH range.
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