Day 346: MHT-CET Chemistry

1. A.
   4
2. B.
   2
3. C.
   1
4. D.
   5

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1. A.
   At
2. B.
   Zn
3. C.
   As
4. D.
   Te

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1. A.
   $\text{Na} \rightarrow \text{Na}^+$
2. B.
   $\text{VO}^{2+} \rightarrow \text{V}_2\text{O}_3$
3. C.
   $\text{Zn}^{2+} \rightarrow \text{Zn}$
4. D.
   $\text{CrO}_4^{2-} \rightarrow \text{Cr}_2\text{O}_7^{2-}$

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1. A.
   16
2. B.
   06
3. C.
   10
4. D.
   04

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1. A.
   These have same number of neutrons.
2. B.
   These are the atoms of different elements.
3. C.
   These have same atomic number.
4. D.
   These have different mass number.

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