15. Select the incorrect statements.

II. Carbon dioxide is heavier than air.

I. Carbon dioxide is an inflammable gas.

IV. Carbon dioxide is stored at high temperature.

III. Carbon dioxide stored as a liquid in fire extinguisher cools the combustible substance below its ignition temperature.

(C) I and IV only

(A) I and II only

B) II and IV only

(D) I, II, III and IV
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