Questions

What value should come in place of the question mark (?) in the following question?

52x14+145018=1998÷?

Which of the following statements are CORRECT?

I. Esters are sweet smelling substance.
II Esters are used in making perfumes.
III. Functional group of ester is R-O-RꞋ.

Which of the following statements with regard to the Mediterraneam agriculture is/are correct?

1.The Mediterranean agriculture is highly specialized commercial agriculture.

2.It is intensive subsistence agriculture dominated by wet paddy cultivation.

3.It is a primitive subsistence agriculture.4.Viticulture is a speciality of the Mediterranean region.

Select the correct answer using the code given below.

Elements having same atomic numbers but different mass number are called ______.

Plants of which group are predominantly aquatic?

Who first discovered the every eighth element had properties similar to that of the first?

An electron loses potential energy when it

Match the correct Memory units.