TS POLYCET
Section — C
CHEMISTRY

91) The defect by which some people cannot see near objects clearly but can see distance objects is called

A) Myopia
B) Cataract
C) Presbyopia
D) Hypermetropia

92) Which of the following is a non metal?

A) Pb
B) Sn
C) K
D) S

93) Which of the following process is used for the purification of crude metal?

A) Roasting
B) Poling
C) Calcination
D) Froth flotation

94) Which one of the following metal occurs in the native form?

A) Au
B) Ca
C) Mg
D) Na

95) The more reactive metal in the activity series is

A) Potassium
B) Zinc
C) Iron
D) Platinum