JEE MAIN - Chemistry (2024 - 31st January Evening Shift - No. 10)
Choose the correct statements from the following
A. $$\mathrm{Mn}_2 \mathrm{O}_7$$ is an oil at room temperature
B. $$\mathrm{V}_2 \mathrm{O}_4$$ reacts with acid to give $$\mathrm{VO}_2{ }^{2+}$$
C. $$\mathrm{CrO}$$ is a basic oxide
D. $$\mathrm{V}_2 \mathrm{O}_5$$ does not react with acid
Choose the correct answer from the options given below :
A, B and D only
A, B and C only
A and C only
B and C only
Explanation
(A) $$\mathrm{Mn}_2 \mathrm{O}_7$$ is green oil at room temperature.
(B) $$\mathrm{V}_2 \mathrm{O}_4$$ dissolve in acids to give $$\mathrm{VO}^{2+}$$ salts.
(C) $$\mathrm{CrO}$$ is basic oxide
(D) $$\mathrm{V}_2 \mathrm{O}_5$$ is amphoteric it reacts with acid as well as base.
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