A nitro-compound among the following that does not react with nitrous acid is:
1. | 2. | ||
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4. | |
In nitration of benzene using a mixture of conc. H2SO4 and conc. HNO3, the species that initiates the reaction is :
1. NO2
2. NO+
3. NO2+
4. NO2-
A nitrogen-containing aromatic compound A reacts with Sn/HCl, followed by HNO2 to give an unstable compound B. On treatment with phenol, B forms a beautiful coloured compound C with the molecular formula C12H10N2O. The structure of compound A is:
1. | 2. | ||
3. | 4. |
On hydrolysis, what do primary nitroalkanes give?
1. RCOOH + NH2OH
2. RCOOH
3. NH2OH
4. RCOR
The structure of the major product in the following reaction will be:
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The reagent among the following that does not reduce an aryl nitro compound to an amine is:
1. H2(excess) / Pt
2. LiAlH4 in ether
3. Fe and HCI
4. Sn and HCI
Nitrobenzene on reaction with conc. HNO3 /H2SO4 at 80 – 100 ºC forms:
1. 1,3– Dinitrobenzene
2. 1,4–Dinitrobenzene
3. 1,2,4–Trinitrobenzene
4. 1,2–Dinitrobenzene
The product formed in the below mentioned reaction is:
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2. | |
3. | |
4. | |
The reagent that is used to change nitromethane into methylhydroxylamine is:
1.
2.
3.
4.