MCQ
Azo-dyes are prepared from
- AAniline
- BBenzaldehye
- CBenzoic acid
- ✓Phenol
✓
Answer
Correct option: D.
Phenol
d
It’s Obvious.
It’s Obvious.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
When methyl cyanide is hydrolysed in presence of alkali, the product is
The complex that can show fac-and mer-isomers is
The heat of physisorption lie in the range of:
Carbon dioxide is a $.......$
→Assertion : Both rhombic and monoclinic sulphur exist as $S_8$ but oxygen exists as $O_2$.
→Reason : Oxygen forms $p\pi \,-\, p\pi $ multiple bond due to small size and small bond length but $p\pi \,-\,p\pi $ bonding is not possible in sulphur.
In a first order reaction, the concentration of product $'x\ '$ at time $'t\ '$ is given by the expression$:\ ($where$,a =$ initial concentration$, k =$ rate constant$, n =$ order$)$
→Which is the major product of the following reaction ?
Saturated solution of $KN{O_3}$ is used to make ‘salt-bridge’ because
→Catalyst decomposition of hydrogen peroxide is a ........ order reaction
Red phosphorus can be obtained from white phosphorus by