A research scholar get a mixture of three product during an experiment with ammonia. In product I only one H of ammonia is replaced by ethyl group and in II two H atoms of ammonia are replaced by ethyl groups and in III all the H- atoms are replaced by ethyl groups. Which test he should use to distinguish or separate the products `:`

If one H-atom of ammonia is replaced by an alkly group, the amine obtained is known as

In glycerol, if one of the H - atoms of - OH groups is replaced with phosphoric acid, then it is called

You are given an organic compound having the molecular C_(3)H_(8) Give the name and formula of the compound formed: (a) When one H atoms of C_(3)H_(8) is replaced by a CI atom . (b) when one H atom of C_(3)H_(8) is replaced by OH group. (c ) when one H atom of C_(3)H_(8) is replaced by a CHO group. (e ) when two H atoms joined to the middle carbon atom of C_(3)H_(8) replaced by one O atom.

Active methylene compounds are of great importance in synthetic chemistry. When –CH_(2) (methylene) group is flanked between two electron withdrawing groups, then its hydrogen becomes acidic and can be replaced easily. The acidity of methylene hydrogen depends upon the strength of electron withdrawing group. Acetoacetic ester, malonic ester, etc. are the examples of active methylene compound. In synthetic application acidic hydrogen is trapped by a strong base to get resonance stabilised anion which reacts accordingly to give the desired product. The final product is :

Statement -There is a company in which there are three different groups of employees in which each of the employee gets salary in three different ways. In the first group, each employee gets complete salary in an envelop. In second group, each of the employee gets salary in two equal parts in two envelops. in third group, each employee gets salary in three equal parts of envelop. The third group spend least among all and employees of second group spends less than the first one. What would be the reason behind the less spending of second group as compared to the first one ? (I) It is a policy of the company as the employees are categorized in three groups based on their performance. (II) It is human psychology as those who get salary in two parts spend less. Because they would think before spending the second envelop. And third group spend least as it contained their child's name which itself has some emotional quotient. so, it will promote the saving habits among employees. (III) Company divided the employees in three groups according to their saving habits as those who are in second group are more saving oriented as compared to the first one.