The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is:

1. Acidic KMnO₄

2. Alkaline K₂Cr₂O₇

3. Chromium anhydride in glacial acetic acid

4. Pyridinium Chlorochromate

The boiling point of ethanol is higher than that of dimethyl ether due to the presence of

Given is a reaction for your reference:

\(CH_3CH_2CH_2OH \xrightarrow[160\ - \ 180 ^\circ C]{Conc.\ H_2SO_4}\ X\ \xrightarrow{Br_2}\ Y\)
\( Y\ \xrightarrow[2.\ NaNH_2]{1.\ Alc.\ KOH}\ Z\)

The final product Z is:

1.		2.
3.		4.	\(CH_3-C\equiv CH\)

The decreasing order of boiling points of \(1^\circ\), \(2^\circ\), and \(3^\circ\) alcohol is-

1. \(1^\circ\)> \(2^\circ\)> \(3^\circ\)                            

2. \(3^\circ\)> \(2^\circ\)> \(1^\circ\)

3. \(2^\circ\)$$ $$> \(1^\circ\)$$ $$> \(3^\circ\)                             

4. None of the above

Consider the following alcohols,

I.
II.
III.
IV.

Ease of dehydration of the above alcohols will be in the order of:

The strongest acid among the following aromatic compounds is -

The compound among the following that most easily oxidised is:

1.		2.
3.		4.

An organic compound A reacts with sodium metal and forms B. On heating with conc. H₂SO₄, A gives diethyl ether. So A and B are:
1. C₃H₇OH and CH₃ONa
2. CH₃OH and CH₃ONa
3. C₄H₉OH and C₄H₉ONa
4. C₂H₅OH and C₂H₅ONa

The heating of phenylmethyl ether with HI produces-

1. Iodobenzene

2. Phenol

3. Benzene

4. Ethyl chloride

The most acidic compound among the following is:

1.		2.
3.		4.