Day 423: MHT-CET Chemistry

1. A.
   $Mg,P$ and S
2. B.
   $\ Ca,P$ and O
3. C.
   $Al,Mg$ and P
4. D.
   $\ Ca,S$ and O

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1. A.
   Atoms of oxygen and sulphur consist two unpaired electrons in valence shell.
2. B.
   Oxygen and sulphur show -2, +4 and +6 oxidation states.
3. C.
   Oxygen is gas while sulphur is solid at room temperature.
4. D.
   Hydride of oxygen is more stable than hydride of sulphur.

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1. A.
   Nucleophilic reaction of benzene
2. B.
   Electrophilic reaction of benzene
3. C.
   Addition reaction of benzene
4. D.
   Nucleophilic substitution reaction of benzene

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1. A.
   $1.8 \times 10^{-6}$
2. B.
   $1.8 \times 10^{-7}$
3. C.
   $1.8 \times 10^{-8}$
4. D.
   $1.8 \times 10^{-9}$

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1. A.
   Platinized asbestos
2. B.
   Fe-Cr catalyst
3. C.
   Ni
4. D.
   $\text{MnO}_2$

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