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Exam Details

CDS (II) GENERAL KNOWLEDGE (PYSP) 2018

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Questions 120
Duration 180 mins
Package CDS & Defence Exams - Previous Year Papers

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Difficulty distribution

Medium 81 67.5%
Hard 33 27.5%
Easy 6 5%

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Multiple Choices 120 100%

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1
2018 · Unclassified
CDS (II) GENERAL KNOWLEDGE (PYSP) 2018
Two reactants in a flask at room temperature are producing bubbles of a gas that turn limewater milky. The reactants could be
A
zinc and hydrochloric acid
B
magnesium carbonate and hydrochloric acid
C
copper and dilute hydrochloric acid
D
methane and oxygen
2
2018 · Unclassified
CDS (II) GENERAL KNOWLEDGE (PYSP) 2018
How many moles of CO can be obtained by reacting 2.0 mole of CH4 with 2.0 mole of O2 according to the equation given below?\
A
2
B
2.5
C
4
D
0.5
3
2018 · Unclassified
CDS (II) GENERAL KNOWLEDGE (PYSP) 2018
Reaction between which of the following two reactants will produce hydrogen gas?
A
Magnesium and hydrochloric acid
B
Calcium carbonate and hydrochloric acid
C
Zinc and nitric acid
D
Copper and dilute nitric acid
4
2018 · Unclassified
CDS (II) GENERAL KNOWLEDGE (PYSP) 2018
Which of the following characteristics is common to hydrogen, nitrogen, oxygen and carbon dioxide?
A
They are all diatomic
B
They are all gases at room temperature.
C
They all have same reactivity.
D
They are all coloured.
5
2018 · Unclassified
CDS (II) GENERAL KNOWLEDGE (PYSP) 2018
The compound has
A
17 atoms in a molecule of the compound
B
equal molecules of C and H by mass
C
twice the mass of oxygen atoms compared to nitrogen atoms
D
twice the mass of nitrogen atoms compared to hydrogen atoms
6
2018 · Unclassified
CDS (II) GENERAL KNOWLEDGE (PYSP) 2018
Which of the following is the general formula for saturated hydrocarbons?
A
B
C
D