The following questions are for the Visually Impaired Candidates in lieu of Question.
(a) Mention any one mature Harappan site in India.
(b) Mention one Buddhist site in Maharashtra.
(c) Name any one territory which was under the Mughals.
(d) Name the capital of the Vijayanagara Empire.
(e) Name any two centres of the Indian National Movement.
मोबाइल फोन विहीन दुनिया — 120 शब्दों में रचनात्मक लेख लिखिए :

Amines are usually formed from amides, imides, halides, nitro compounds, etc. They exhibit hydrogen bonding which influences their physical properties. In alkyl amines, a combination of electron releasing, steric and H-bonding factors influence the stability of the substituted ammonium cations in protic polar solvents and thus affect the basic nature of amines. Alkyl amines are found to be stronger bases than ammonia. Amines being basic in nature, react with acids to form salts. Aryldiazonium salts, undergo replacement of the diazonium group with a variety of nucleophiles to produce aryl halides, cyanides, phenols and arenes.