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When Ammonia is used as a refrigerant in vapour compression cycle?

(A) Cu Tubing used
(B) Steel tubes used
(C) Both a & b
(D) Material does not effect by refrigerant

Submitted By :Ali Uppal

Example of ‘globular’ proteins is __________ ?

(A) Peptide
(B) Enzymes
(C) Primary protein
(D) Secondary proteins

Submitted By :Ali Uppal

which Compound Destroy The OZONE ?

(A) CFCs
(B) CH3COOH
(C) BOTH A & B
(D) None Of These

Submitted By :Ali Uppal

In whole Periodic Table which element Is Most Reducing Agent ?

(A) Chlorine
(B) lithium
(C) Helium
(D) Neon

Submitted By :Ali Uppal

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