Let A={1,2,3}, and B={x ∈ Z ∣ 1≤x≤4}. The total

Who among the following is known for the discovery of atomic-bomb?

Which of the following apparatus is used to test the acidity of the aqueous solution?

Which of the following alkali metals has the highest specific heat?

Which of the following metals does not liberate hydrogen gas when reacted with cold water but does so with steam?

In SONAR, we use

Which dating method is commonly used to determine the age of materials from prehistoric times?

Deficiency of which of the following elements is responsible for weakening of bones?

1. Calcium 

2. Phosphorus

3. Nitrogen

Law of conservation of mass is not correct for

In which form is iron ore primarily found in nature?

Flemings right hand rule is used to find the direction of the –