Three capacitors of capacitance 3F, 10F and 15F are connected in series to a voltage source of 100V. The charge on 15 µF is 1) 100 µC 2) 280 µC 3) ...
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Iodoform is formed on warming I2 and NaOH with 1) C2H5OH 2) CH3OH 3) HCOOH 4) C6H6
The reaction given below is known as CH5ONa+ICH5->->CH5OCH5 + Nal 1) Kolbe synthesis 2) Wurtz synthesis 3) Williamson synthesis 4) Grignard synthesis
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In the chemical reaction, CH3CHNH2 + CHCl3 +3KOH->(A)+(B) + 3HO, the compound are respectively 1) C2H5CN and 3KCl 2) C2H5NC and 3KCl 3) C2H5NC and K2co3 4) CH3CH2CONH2 and ...
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If pressure of a gas contained in a closed vessel is increased by 0.4% when heated by 1°C, the initial temperature must be 1) 250 K 2) 2500 K 3) 250°C ...
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The electric field and the potential of an electric dipole vary with distance R as ….. 1) 1/r and 1/r² 2) 1/r² and 1/r 3) 1/r² and 1/r³ 4) 1/r³ ...
What is immaterial for an electric fuse wire 1) Current flowing through it 2) Its specific resistance 3) Its length 4) Its radius