MCQ
In the transition of $Zn$ atoms to $Z{n^{ + + }}$ ions there is a decrease in the
- ✓Number of valency electrons
- BAtomic weight
- CAtomic number
- DEquivalent weight
✓
Answer
Correct option: A.
Number of valency electrons
(a) Ion is formed by gaining or losing electrons. To form cation electron are lost from the valency shell, so $Zn$ atoms to $Z{n^{ + + }}$ ions there is a decrease in the no. of valency electron.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which of the following are meso compound?
Most stable carbanion is
$1\,L,0.02\,M$ solution of $\left[ Co \left( NH _3\right)_5 SO _4\right] Br$ is mixed with $1\,L,0.02\,M$ solution of $\left[ Co \left( NH _3\right)_5 Br _3\right] SO _4$. The resulting solution is divided into two equal parts (X) and treated with excess $AgNO _3$ solution and $BaCl _2$ solution respectively as shown below:$1\,L$ Solution $( X )+ AgNO _3$ solution $($excess$) \rightarrow Y$
$1\,L$ Solution $( X )+ BaCl _2$ solution $($excess$) \rightarrow Z$
The number of moles of $Y$ and $Z$ respectively are
→$1\,L$ Solution $( X )+ BaCl _2$ solution $($excess$) \rightarrow Z$
The number of moles of $Y$ and $Z$ respectively are
Identify conformer of $2-$ methyl pentane
→The structural formula of hypophosphorus acid is
Which of the following compound has one of the stereoisomers as a meso compound?
Alkenes convert into alcohols by
Reaction is called
Which of the following is Friedel-Craft's reaction