The reaction of phenol with alkaline chloroform gives salicylaldehyde, it is called
Options
(a) Gatterman aldehyde synthesis (b) Perkin’s reaction (c) Reimer Tiemann reaction (d) Duff reaction
Correct Answer:
Reimer Tiemann reaction
Explanation: […]
Chlorobenzene can be prepared by reacting aniline with
Options
(a) hydrochloric acid (b) cuprous chloride (c) chlorine in presence of anhydrous aluminum chloride (d) nitrous acid followed by heating with cuprous chloride
Correct […]
1,1,2,2-tetrabromoethane on treatment with Zn dust yields an
Options
(a) alkene (b) alkane (c) alkyne (d) haloalkane
Correct Answer:
alkyne
Explanation:
No explanation available. Be the first to write the explanation for this […]
Tert-butyl bromide on treatment with sodium methoxide yields
Options
(a) sodium tert-butoxide (b) methyl tert-butyl ether (c) tert-butyl alcohol (d) iso-butylene
Correct Answer:
iso-butylene
Explanation:
No explanation available. Be the first to write […]
The ozone layer forms naturally by
Options
(a) the interaction of CFC with oxygen (b) the interaction of UV radiation with oxygen (c) the interaction of IR radiation with oxygen (d) the interaction […]
The secondary precursors of photochemical smog are
Options
(a) SO₂ and NO₂ (b) SO₂ and hydrocarbons (c) NO₂ and hydrocarbons (d) O₃ and PAN
Correct Answer:
O₃ and PAN
Explanation:
No explanation available. […]
Which one of the following is not a greenhouse gas
Options
(a) Methane (b) Ozone (c) Carbon dioxide (d) Nitrogen
Correct Answer:
Nitrogen
Explanation:
CH₄, O₃ and CO₂ are green house gases since […]
The greenhouse effect can be caused by the presence of the following component present in automobile exhaust
Options
(a) oxides of nitrogen (b) hydrocarbons (c) CO₂ (d) SO₂
Correct Answer:
CO₂
Explanation:
No […]
Which one of the following statements regarding photochemical smog is not correct
Options
(a) Carbon monoxide does not play any role in photochemical smog formation (b) Photochemical smong is an oxidising agent in […]
Green chemistry means such reactions which
Options
(a) Are related to the depletion of ozone layer (b) Study the reactions in plants (c) Produce colour during reactions (d) Reduce the use and production […]
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