Nitrobenzene can be prepared from benzene by using a mixture of conc. `HNO_(3)` and conc. `H_(2)SO_(4)`. In the nitrating mixture, nitric acid acts as a
A. base
B. acid
C. reducing agent
D. catalyst.
Correct Answer - A
`HNO_(3)` acts as a base as it provides p-nitrophenol.
`HNO_(3) Leftrightarrow H^(+)+HSO_(4)`
`O_(2)N-OH+H^(+) to NO_(2)^(+)+H_(2)O`
Correct Answer - C
Since `HNO_(3)` is also a strong oxidising agent, therefore, aniline forms tarry oxidation products along with some oxidation products.
Correct Answer - C
Nitration of benzene is a second order reaction (first order with respect to benzene and first order with respect to `NO_(2)^(+)` ) ltbr. `:.` Rate = `k`...
Correct Answer - B
In nitration of aromatic compounds with conc. `HNO_(3) +` conc. `H_(2)SO_(4)` the attacking electrophile is nitronium ion `(NO_(2)^(+))`.
Correct Answer - 15.44 M
`"Mass of solution"= 100 g, "Mass os "HNO_(3)=69 g`
`"Volume of solution"=(100 g)//(1.41" g cm"^(-3))=70.92 cm^(3)=0.07092 dm^(3)`
`"Molar mass of "HNO_(3)=1 +14 +3xx16=63" g mol"^(-1)`
`"Molarity...