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1
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is not true for bleaching powder?
A
It is used as a reducing agent in chemical industries
B
it is used for bleaching wood pulp in paper factories
C
It is used for disinfecting drinking water
D
It is used for bleaching linen in textile industry
2
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is the number of water molecules that share with two formula unit of CaSO4 in plaster of Paris?
A
One
B
Two
C
Five
D
Ten
3
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
How is carbon black obtained?
A
By heating wood at high temperature in absence of air
B
By heating coal at high temperature in absence of air
C
By burning hydrocarbons in a limited supply of air
D
By heating coal at high temperature in presence of air
4
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following properties is not true for graphite?
A
Hybridisation of each carbon atom is sp3
B
Hybridisation of each carbon atom is sp2
C
Electrons are delocalised over the whole sheet of atoms
D
Each layer is composed of hexagonal rings
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Sets, Relations and Functions Logarithms Quadratic Equations and Inequalities Sequence And Series Binomial Theorem Matrices Determinants Permutations and Combinations Probability Complex Numbers Vector Algebra Three Dimensional Geometry Statistics
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