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A. Remove oil vapour or moisture from air

B. Cool the dry air before use

C. Reduce the volumetric capacity of receiver

D. None of these

A. Zero shear stress

B. Positive normal stress

C. Non-zero shear stress

D. None of these

A. 2-5

B. 18-20

C. 12-15

D. 6-12

A. Base and strong acid

B. Base and weak acid

C. Acid and weak base

D. None of these

A. Solids

B. Liquids

C. Either A or B

D. Gaseous

A. Cation speed

B. Atomic number of the cation

C. Equivalent mass of the electrolyte

D. None of these

A. Iron

B. Gold

C. Zinc

D. Copper

A. Grey

B. Black

C. Opaque

D. White

A. 80-85

B. 60-65

C. 40-45

D. 20-25

A. As tiny gas bubbles

B. In the atomic form

C. In the ionic form

D. In the molecular form