Answer: I think the answer is C
Explanation:
O two gained
Fe three lost
Br one gained
Ni two lost
K one lost
F one gained
P three gained
-=gained as electrons have a negative charge
+=lost electrons
The answer is (2) low temperature and high pressure so oxygen gas behave least like an ideal gas :)))
i hope this be helpful
* merry Christmas *
Answer:
Element X has valency 2 while Y Valency 2, element Y has high tendency of gaining electrons for its stability thus the compound formed will be B
elements X is positively charged while Y will be negatively charged
Answer : Option D) 
Explanation : When a positron is getting absorbed it means it will be 
so, the 
will get converted;
So, the whole reaction will be;
+ ----> .
This will convert the whole element of Cu will get changed into Zn. As, it absorbs by the positron, the atomic number gets increased from 29 to 30.
