Which of the following statement $$(s)$$ is / are incorrect for $$C{O_2}?$$
(i) In laboratory $$C{O_2}$$ 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) $$C{O_2}$$ as dry ice is used as a refrigerant for ice cream and frozen food.
A.
(i) and (ii)
B.
Only (ii)
C.
(i), (ii) and (iii)
D.
(ii) and (iii)
Answer :
Only (ii)
Solution :
Carbon dioxide is not a poisonous gas.
Releted MCQ Question on Inorganic Chemistry >> P - Block Elements
Releted Question 1
The reddish brown coloured gas formed when nitric oxide is oxidised by air is