set 4 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) a compound
(b) an element
(c) a mixture
(d) a salt
The correct answers to the above question in:
Answer: (c)
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Question : 1
Which of the following is known as dead burnt plaster?
a) Slaked lime
b) Lime stone
c) Quick lime
d) Gypsum
Answer »Answer: (a)
Question : 2
The acid used in making of vinegar is –
a) acetic acid
b) sulphuric acid
c) formic acid
d) nitric acid
Answer »Answer: (a)
6 - 12% acetic acid is known as vinegar.
Question : 3
Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I (Mineral) | List-II (Industries in which largely used) |
A. Limestone | 1. Cement |
B. Copper | 2. Electrical goods |
C. Bauxite | 3. Manufacture of aeroplanes |
D. Manganese | 4. Steel |
a) 3 2 1 4
b) 3 4 1 2
c) 1 2 3 4
d) 1 4 3 2
Answer »Answer: (c)
Question : 4
Which one among the following is a double salt ?
a) CuSO4 · 5H2O
b) K4[Fe(CN)6]
c) K2SO4 · A12(SO4)3 · 24H2O
d) NaCl
Answer »Answer: (c)
Question : 5
Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I | List-II |
A. Neela thotha | 1. Sodium Bicarbonate |
B. Epsom salt | 2. Sodium Hydroxide |
C. Baking soda | 3. Magnesium Sulphate |
D. Caustic soda | 4. Copper Sulphate |
a) 4 3 2 1
b) 3 4 1 2
c) 3 4 2 1
d) 4 3 1 2
Answer »Answer: (d)
Question : 6
‘Yellow cake’, an item of smuggling across border is
a) uranium oxide
b) a crude form of heroin
c) a crude form of cocaine
d) unrefined gold
Answer »Answer: (a)
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