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1
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
The mass number of argon is 40. Which one of the following statements is correct?
A
The number of protons in argon is 22.
B
The number of neutrons in argon is 18.
C
The number of electrons in argon is 18.
D
The sum of numbers of protons and electrons in argon is 40.
2
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Which one of the following is the correct order of the valencies of elements Ne, Si, N and Mg?
A
Ne < Mg < N < Si
B
Si < N < Mg < Ne
C
Ne < N < Si < Mg
D
Mg < Ne < N < Si
3
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Which one of the following reactions is an example of decomposition reaction?
A
CH4 (g) + 2O2 (g) → CO2(g) + 2H2O(g)
B
2AgCI(s) $\rm \xrightarrow{Sunlight} $ 2Ag(s) + CI2(g)
C
CuO + H2 $\rm \xrightarrow{Heat} $ Cu + H2O
D
Fe(s) + CuSO4 (aq) → FeSO4 (aq) + Cu(s)
4
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Common salt (NaCl) is not used as a raw material for preparation of which one of the following compounds?
A
Bleaching powder
B
Baking soda
C
Plaster of Paris
D
Washing soda
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Questions Asked from Marks 4
NDA General Ability 13 April 2025 (13) NDA General Ability 21 April 2024 (14) NDA General Ability 3 September 2023 (19) NDA General Ability 16 April 2023 (16) NDA General Ability 4 September 2022 (13) NDA General Ability 10 April 2022 (15) NDA General Ability 18 April 2021 (15)
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Sets, Relations and FunctionsLogarithmsQuadratic Equations and InequalitiesSequence And SeriesBinomial TheoremMatricesDeterminantsPermutations and CombinationsProbabilityComplex NumbersVector AlgebraThree Dimensional GeometryStatistics
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Coordinate Geometry
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