Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5

Q.

The following are the statements regarding polarizing power of IIA group cations
i) Be always forms covalent compounds due to high polarizing power of Be+2 ions
ii) Be always form covalent compounds due to low polarizing power of Be+2 ions
iii) Polarizing power of IIA cations decreases from Be+2 ion to Ba+2 ion
The correct combination is

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya

a

i and ii

b

iii and i

c

i, ii and iii

d

ii and iii

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

detailed_solution_thumbnail

BeCl2 > MgCl2 > CaCl2 > SrCl2 > BaCl2 : percentage covalent character
 

\large \xrightarrow{{B{e^{ + 2}} > {\text{ }}M{g^{ + 2}} > {\text{ }}C{a^{ + 2}} > {\text{ }}S{r^{ + 2}} > {\text{ }}B{a^{ + 2}}}}:\;Polarising\;power\;of\;cation


As the size of cation decreases, effective nuclear charge decreases, and hence polarising power of cation decreases,
Distortion of electron cloud in anion by cation decreases, hence sharing property of electron pair in M-Cl bond decreases
 

\large Polarising\;power\;of\;cation\; \propto \;\frac{1}{{Size\;of\;cation}}\; \propto \;\% \;\operatorname{cov} alent\;charater


Therefore statement-I and Statement - III are correct

Watch 3-min video & get full concept clarity

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon