MCQ
Formaldehyde is used as formalin in industries:
- ATo preserve biological specimens
- BTo prepare bakelite
- CBoth A and B
- DNone of these
✓
Answer
- Both A and B
Explanation:
Formaldehyde is used as Formalin in industries as to preserve biological specimens and to prepare bakelite.
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
Bond order of C−X bond is 1 because:
A chemist has $4$ samples of artificial sweetner $A$. $\mathrm{B}, \mathrm{C}$ and $\mathrm{D}$. To identify these samples, he performed certain experiments and noted the following observations :
→$(i)$ $A$ and $D$ both form blue-violet colour with ninhydrin.
$(ii)$ Lassaigne extract of $\mathrm{C}$ give positive $\mathrm{AgNO}_{3}$ test and negative $\mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3}$ test.
$(iii)$ Lassaigne extract of $\mathrm{B}$ and D gives positive sodium nitroprusside test
Based on these observations which option is correct ?
The unit of rate constant for a zero order reaction is
What will happen if $LiAl{H_4}$ is added to an ester
→When conc. ${H_2}S{O_4}$ comes in contact with sugar, it becomes black due to
→The total number of possible isomers of the compound $[C{u^{} }{(N{H_3})_4}][P{t^{}} C{l_4}]$ are :
→Match List - $I$ with List -$II$. $Image$ Choose the correct answer from options given below:
→What will happen during the electrolysis of aqueous solution of CuSO4 in the presence of Cu electrodes?
When phthalic acid is heated, phthalic anhydride is formed, $IUPAC$ name of phthalic anhydride is?
→Total number of stereoisomers of [Co(acac)2BrCl]- are.