set 2 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 2 EXERCISES
The following question based on some important man made materials topic of general science mcq
(a) Clay
(b) Limestone
(c) Gypsum
(d) Ash
The correct answers to the above question in:
Answer: (b)
The composition of cement is CaO (lime) or limestone 62%, silica (SiO2) 22%, alumina (Al2O3) 7.5%, magnesia (MgO) 2.5%, etc.
Thus, limestone is the major raw material for cement.
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Question : 1
One of the properties of glass is its transparency. This property of glass is due to
a) irregular arrangement of silicate units in glass.
b) regular arrangement of silicate units in glass.
c) its high viscosity.
d) its high coefficient of thermal expansion.
Answer »Answer: (a)
Question : 2
Deficiency of vitamin A results in
a) sterility
b) skin diseases
c) lose in apetite
d) retarted growth
Answer »Answer: (d)
In childhood, lack of vitamin A retards growth and hence like other vitamins, it is also said to be a growth-promoting factor.
In mild deficiency, it leads to night blindness. Its prolonged deficiency leads to xerophthalmia.
Question : 3
Deficiency of vitamin E causes
a) Hemolytic anemia
b) Scurvy
c) Beriberi
d) None of these
Answer »Answer: (a)
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