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1
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is an organic acid?
A
Hydrochloric acid
B
Nitric acid
C
Acetic acid
D
Sulphuric acid
2
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Dinitrogen (N2) and dioxygen (O2) are the main constituents of air, but they do not react with each other to form oxides of nitrogen because,
A
the reaction requires initiation by a catalyst
B
oxides of nitrogen are unstable
C
the reaction is endothermic and requires very high temperature
D
the stoichiometry of N2 and O2 in air is not ideal for the reaction to take place
3
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The equivalent weight of oxalic acid in C2H2O4 . 2H2O is
A
45
B
63
C
90
D
126
4
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
On exposure to moist air, copper gains a green oat on its surface due to formation of which one of the following compounds?
A
Copper carbonate
B
Copper oxide
C
Copper sulphate
D
Copper nitrate
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Questions Asked from Marks 2.5
NDA Subjects
Mathematics
Algebra
Sets, Relations and FunctionsLogarithmsQuadratic Equations and InequalitiesSequence And SeriesBinomial TheoremMatricesDeterminantsPermutations and CombinationsProbabilityComplex NumbersVector AlgebraThree Dimensional GeometryStatistics
Trigonometry
Trigonometric Angles and EquationsInverse Trigonometric FunctionHeight and DistanceProperties of Triangles
Coordinate Geometry
Coordinate System and Straight LineCircleParabolaEllipseHyperbolaConic Section
Calculus
FunctionsLimit, Continuity and DifferentiabilityDifferentiationApplication of DerivativesIndefinite IntegrationDefinite IntegrationArea Under The CurvesDifferential Equations
English
General Science
General Studies