At higher temperature,iodoform reaction is given by
Options
(a) CH₃CO₂CH₃ (b) CH₃CO₂C₂H₅ (c) C₆H₅CO₂CH₃ (d) CH₃CO₂C₆H₅
Correct Answer:
CH₃CO₂C₂H₅
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Nitrobenzene gives N-phenylhydroxylamine by
Options
(a) Sn/HCl (b) H₂/Pd-C (c) Zn/NaOH (d) Zn/NH₄Cl
Correct Answer:
Zn/NH₄Cl
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
A double slit experiment is performed with light of wavelength 500 nm. A thin film of thickness 2 μm and refractive index 1.5 is introduced in the path of the upper beam. The location of […]
When a beam of light is used to determine the position of an object, the maximum accuracy is achieved if the light is
Options
(a) Polarised (b) Of longer wavelength (c) Of shorter wavelength […]
Characteristic X-rays are produced due to
Options
(a) Transfer of momentum in collision of electrons with target atoms (b) Transition of electrons from higher to lower electronic orbits in an atom (c) Heating […]
A black body at a temperature of 227⁰C radiates heat at a rate of 20 cal m⁻²s⁻¹. When its temperature is raised to 727⁰C, the heat radiated by it in cal m⁻²s⁻¹ will be closest […]
The difference in the lengths of a mean solar day and a sidereal day is about
Options
(a) 1 min (b) 4 min (c) 15 min (d) 56 min
Correct Answer:
56 min
A radioactive substance decays to 1/16th of its initial activity in 40 days. The half-life of the radioactive substance expressed in days is
Options
(a) 2.5 (b) 5 (c) 10 (d) 20
Correct Answer: […]
Which of the following compounds possesses the C-H bond with the lowest bond dissociation energy?
Options
(a) Toluene (b) Benzene (c) n-Pentane (d) 2,2-Dimethylpropane
Correct Answer:
Toluene
Explanation:
Structure of Toluene:
Toluene (C₆H₅CH₃) […]
Photochemical smog formed in congested metropolitan cities mainly consists of
Options
(a) ozone, peroxyacetyl nitrate and NOₓ (b) smoke, peroxyacetyl nitrate and SO₂ (c) hydrocarbons, SO₂ and CO₂ (d) hydrocarbons, ozone and SOₓ
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