Day 252: MHT-CET Chemistry

1. A.
   Siderite
2. B.
   Calamine
3. C.
   Chalcocite
4. D.
   Limonite

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1. A.
   $\text{BeCl}_2$ and $\text{Be(OH)}_2$
2. B.
   $\text{BeCl}_2$ and $\text{Na}_2\text{BeO}_4$
3. C.
   $\text{Be(OH)}_2$ and $\text{BeCl}_2$
4. D.
   $\text{BeCl}_2$ and $\text{Na}_2\text{BeO}_2$

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1. A.
   ZnS
2. B.
   NaCl
3. C.
   KCl
4. D.
   KBr

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1. A.
   Poor shielding of one of 4f electron by another in the sub-shell.
2. B.
   Effective shielding of one of 4f electrons by another in the subshell
3. C.
   Poorer shielding of 5d electrons by 4f electrons
4. D.
   Greater shielding of 5d electrons by 4f electrons

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1. A.
   One
2. B.
   Two
3. C.
   Three
4. D.
   Four

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