USE of A /AN

A and B are separated using chromatography then find retardation factor of A using following information:

Use of above|Use of off|Use of with|Use of through|Use of under|Use of beneath and underneath|Use of between|Use of among|Use of by|Use of upon or onto|Use of to|Use of 'of'|Use of about|Use of toward and towards|Use of over

Meaning of Preposition|Types of Preposition|Use of for|Use of at|Use of from|Use of Since|Use of in|Use of on|Use of after|Use of Behind|Use of before|One Minute Revision

Salts - Uses Of NaOH|Uses Of Chlorine|Uses Of Hydrogen|B. Bleaching Powder|B. Properties|Uses Of Bleaching Powder

Which of the following organisms is useful for us ?

Why is majority of fres water not available to us for use ?

Which of the following conditions will give the most benefits? Why? (a) Farmers use high-quality seeds, do not adopt irrigation or use fertilizers. (b) Farmers use ordinary seeds, adopt irrigation and use fertilizer. (c) Farmers use quality seeds, adopt irrigation, use fertilizer and use crop protection measures.

Which of the following conditions will give most benefits? Why? (a) Farmers use high quality seeds, do not adopt irrigation or use fertilizers. (b) Farmers use ordinary seeds, adopt irrigation or use fertilizers. (c ) Farmers use quality seeds, adopt irrigation, use fertilizers and use crop protection measures?