Day 408: MHT-CET Chemistry

1. A.
   $\mathrm{H_2}$
2. B.
   $\mathrm{O_2}$
3. C.
   $\mathrm{CH_4}$
4. D.
   $\mathrm{CO_2}$

Tap an option to check your answer.

1. A.
   [Ar] $3d^9\,4s^2$
2. B.
   [Ar] $3d^{10}\,4s^1$
3. C.
   [Ar] $3d^5\,4s^2$
4. D.
   [Ar] $3d^6\,4s^2$

Tap an option to check your answer.

1. A.
   Homogeneous catalyst
2. B.
   Inhibitor
3. C.
   Promoter
4. D.
   Heterogeneous catalyst

Tap an option to check your answer.

1. A.
   $\mathrm{C + \dfrac{1}{2}O_2 \rightarrow CO_{(g)}}$
2. B.
   $\mathrm{Fe_2O_3 + 3CO \rightarrow 2Fe + 3CO_2}$
3. C.
   $\mathrm{CaCO_3\ (heat) \rightarrow CaO + CO_2}$
4. D.
   $\mathrm{CaO + SiO_2 \rightarrow CaSiO_3}$

Tap an option to check your answer.

1. A.
   Aryl alkyl ethers have weaker and longer bonds between oxygen and aromatic ring.
2. B.
   The alkoxy group in aryl alkyl ethers exhibits $+R$ effect.
3. C.
   When ethers are exposed to the atmosphere, they form corresponding peroxides.
4. D.
   Ethers dissolve in cold, concentrated $\mathrm{H_2SO_4}$

Tap an option to check your answer.