Which of the following reaction cannot be used for the conversion RCO → RCH₂
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Which one of the following has the minimum boiling point?
Which of the following has the same mass as that of an electron?
A one litre flask is full of brown bromine vapours. The intensity of brown colour of vapour will not decrease appreciably on adding to the flask some
The maximum amount of BaCl₄ precipitated on mixing BaCl₂ (0.5 M) with H₂SO₄ (1M) will correspond to
The energy of C-C triple bond in acetylene in k.cals is
Lower carboxylic acid are soluble in water due to
The difference between ΔH and ΔE for the combustion of methane at 27°C will be (in J mol-1)
The chemical equilibrium of a reversible reaction is not influenced by
If initial concentration is doubled, the time for half reaction is also doubled, the order of reaction is
Given that (i) C + O₂ → CO₂ ; ∆H° = − xkJ, (ii) 2CO + O₂ → 2CO₂ ; ∆H° = −ykJ . The enthalpy of formation of carbon monoxide will be
Which of the following is isoelectronic as well as has the same structure as that of N₂O?
The amount of Aluminium deposited when 0.1 Faraday current is passed through aluminium chloride will be (R = 27)
In the ideal gas equation, the gas constant R has dimension of
4gram of hydrocarbon on complete combustion gave 12.571 gram of CO2 and 5.143 gram of water. What is the empirical formula of the hydrocarbon
Which of the following compounds will show metamerism?
A radioactive isotope decays at such a rate that after 192 minutes, only 1/16 of the original amount remains. The half-life of the radioactive isotope is
The major product (70%-80%) of reaction between m-dinitrobenzene with (NH4)2Sx is
Which of the following will not give the iodoform test?
A mixture contains four solid organic compounds A, B, C and D. On heating only C changes from solid to vapour state. C can be separated from the rest in the mixture by
Following carbocation changes to more stable carbocation :