To distinguish between formaldehyde and acetaldehyde, we require - Vidyadip

MCQ

To distinguish between formaldehyde and acetaldehyde, we require

A
Tollen's reagent
B
Fehling's solution
C
Schiff's reagent
✓
Caustic soda solution

✓

Answer

Correct option: D.

Caustic soda solution

d
(d) $2HCHO\mathop {\xrightarrow{{NaOH}}}\limits_{Conc.} C{H_3}OH + HCOONa$

It is aldol condensation reaction.

$2C{H_3}CHO\mathop {\xrightarrow{{NaOH}}}\limits_{dil} C{H_3} - \mathop {\mathop {CH}\limits^{|\,\,\,\,\,\,} }\limits^{OH} - C{H_2} - CHO$

It is aldol condensation reaction.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 8.1. Aldehydes and ketones→8.1. Aldehydes and ketones — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Moles of conc.$HNO_3$ required to oxidise one mole sulphur is :

$S + HNO_3 \rightarrow H_2SO_4 + 6NO_2 + 2H_2O$

Which among the following is the simplest sugar

Which of the following pair of oxide is Amphoteric in nature?

The transition metals are mostly:

In the electrochemical cell${H_2}\,(g)\,1\,atm\,|{H^ + }(1\,M)||C{u^{2 + }}(1\,M)\,|Cu(s)$Which one of the following statements is true

German silver is an alloy of $Cu$ with

In the following reaction : $xA \to yB$ $\log \left[ { - \frac{{d\left[ A \right]}}{{dt}}} \right] = \log \left[ {\frac{{d\left[ B \right]}}{{dt}}} \right] + \log \,2$ where $-ve$ sign indicates rate of disappearance of the reactant. Thus, $x : y$ is

${C_2}{H_5} - C \equiv C - {C_2}{H_5}\xrightarrow{{Na(liq.\,N{H_3})}}(A)\xrightarrow{{B{r_2}/CC{l_4}}}(B)$

Correct statement regarding $B$ product?

The unit of velocity of reaction is :

The function of $DNA$ in an organism is