Questions

Harappa was the earliest city discovered in India.

The Contingency Fund of India was constituted in 1950, by an act of parliament (Article 267). The Fund has been placed at the disposal of the president, who can make advances out of the Fund to meet unforeseen expenditure. The expenses must be subsequently authorised by Union Parliament (Articles 115, 116) and recovered through additional, supplementary or excess grants.

Here the most stable carbocation is the option (2).

Carbocations are always hungry for electrons. The stability of carbocations increases from primary to secondary to tertiary. Here, option (c) shows the most stable carbocation because it can easily withdraw electrons from two other carbon atoms and the more electronegative oxygen atom.

Carbocation stability depends on hyperconjugation. The tertiary carbocation is stabilized by electron releasing inductive effect.

The general properties of acids are as follows :-

1.They are sour to taste.

2.They turn blue litmus paper red but the red litmus paper have no effect of acids and it remains unaffected.

3.They release hydrogen ions H+ in the solution medium, making the conditions acidic.