Q.No.1

Railway wagon axles made by heating rods of iron embedded in charcoal powder . This process is known as

Q.No.2

Matte contains mainly

Q.No.3

CuSo4 solution reacts with KCN to give

Q.No.4

Mixture of MgCl2 and MgO is called

Q.No.5

Which of the following statements is true?

Q.No.6

Generally metals occurs in the native state in the nature because

Q.No.7

Sodium and potassium are kept under

Q.No.8

Which of the following is used in tooth paste

Q.No.9

Nitrolium is

Q.No.10

Very dilute solution of Zinc sulphate is used as


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