Reagent, 1-naphthylamine and sulfanilic acid in acetic acid is used for the detection of
a. NO b. N2O c. NO–3 d. NO–2 Answer: (d) For detection of NO2–, the following test is used
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Match List-I with List-II: List-I (Class of Drug) List-II (Example) (a) Antacid (i) Novestrol (b) Artificial Sweetener (ii) Cimetidine (c)... View Article
In a binary compound, atoms of element A form a hcp structure and those of element M occupy 2/3 of the tetrahedral voids of the hcp structure. The formula of the binary compound is:
a. M2A3 b. MA3 c. M4A d. M4A3 Answer: (d) A → hcp M → 2/3rd of tetrahedral M2 ×... View Article
Match List-I with List-II
Match List-I with List-II: List-I List-II (a) Ca(OCl)2 (i) Antacid (b) CaSO4· 1/2H2O (ii) Cement (c) CaO (iii) Bleach (d)... View Article
Compound with molecular formula C3H6O can show
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The statements that are TRUE
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Match List-I with List-II
Match List-I with List-II: List-I (Chemicals) List-II (Use/Preparation/Constituent) (a) Alcoholic potassium hydroxide (i) electrodes in batteries (b) Pd/BaSO4 (ii) obtained... View Article
The ionic radius of Na+ ion is 1.02 Å. The ionic radii (in Å) of Mg2+ and Al3+, respectively are:
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A particle performs simple harmonic motion with a period of 2 second.
A particle performs simple harmonic motion with a period of 2 second. The time taken by the particle to cover... View Article
A person is swimming with a speed of 10 m/s at an angle of 120o with the flow and reaches to a point directly opposite on the other side of the river.
A person is swimming with a speed of 10 m/s at an angle of 120o with the flow and reaches... View Article
The circuit shown in the figure consists of a charged capacitor of capacity 3 µF and a charge of 30 µC.
The circuit shown in the figure consists of a charged capacitor of capacity 3 µF and a charge of 30... View Article
A ball of mass 10 kg moving with a velocity 10√ 3 m/s along the x-axis, hits another ball of mass 20 kg which is at rest.
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A bullet of mass 0.1 kg is fired on a wooden block to pierce through it, but it stops after moving a distance of 50 cm into it.
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Two separate wires A and B are stretched by 2 mm and 4 mm respectively, when they are subjected to a force of 2 N.
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The voltage across the 10 Ω resistor in the given circuit is x volt.
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An NPN transistor operates as a common emitter amplifier with a power gain of 106.
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A parallel plate capacitor has a plate area of 100 m2 and plate separation of 10 m.
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As shown in the figure, a particle of mass 10 kg is placed at point A.
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The position, velocity and acceleration of a particle moving with constant acceleration can be represented by:
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The P-V diagram of a diatomic ideal gas system going under cyclic process as shown in the figure. The work done during an adiabatic process CD is (use γ = 1.4):
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