P-Block Elements Ques 536
Question: Which of the following statement(s) is / are incorrect for $ CO_2 $ ?
(i) In laboratory $ CO_2 $ is prepared by the action of dilute $ HCl $ on calcium carbonate
(ii) Carbon dioxide is a poisonous gas
(iii) Increase in carbon dioxide content in atmosphere lead to increase in green house effect.
(iv) $ CO_2 $ as dry ice is used as a refrigerant for ice cream and frozen food.
Options:
A) (i) and (ii)
B) Only (ii)
C) (i),(ii) and (iii)
D) (ii) and (iii)
Show Answer
Answer:
Correct Answer: B
Solution:
Carbon dioxide is not a poisonous gas.
