Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Which of the following statements are incorrect? A. All the transition metals except scandium form MO oxides which are ionic. B. The highest oxidation number corresponding to the g

Which of the following statements are incorrect?

A. All the transition metals except scandium form MO oxides which are ionic.
B. The highest oxidation number corresponding to the group number in transition metal oxides is attained in \mathrm{Sc}_2 \mathrm{O}_3 \,\, to\, \, \mathrm{Mn}_2 \mathrm{O}_7.
C. Basic character increases from \mathrm{V}_2 \mathrm{O}_3 \, \,\, to \, \, \mathrm{V}_2 \mathrm{O}_4 to \, \mathrm{V}_2 \mathrm{O}_5.
D.\mathrm{V}_2 \mathrm{O}_4 dissolves in acids to give \mathrm{VO}_4^{3-}salts.
E. CrO is basic but \mathrm{Cr}_2 \mathrm{O}_3 is amphoteric
Choose the correct answer from the options given below :

Option: 1

A and E only


Option: 2

B and D only
 


Option: 3

C and D only
 


Option: 4

B and C only


Answers (1)

best_answer

We know,

Acidic character increases with an increase in oxidation state because the tendency to gain electrons increases with the increase in oxidation state.

\text { Basic character decreases from } \mathrm{V}_2 \mathrm{O}_3 \text { to } \mathrm{V}_2 \mathrm{O}_4 \text { to } \mathrm{V}_2 \mathrm{O}_5 \text {. }

\mathrm{V}_2 \mathrm{O}_4 \text { dissolves in acids to give } \mathrm{VO}^{2+} \textup{ not }\mathrm{VO}_4^{3-} \text { salts. }

C and D are incorrect.

Posted by

avinash.dongre

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET 2025 City Slip (OUT) LIVE: Exam city intimation slip at neet.nta.nic.in; NTA exam centres in 566 cities
anam-khan

Karnataka government urges NMC to hike medical seats amid growing NEET aspirants
anam-khan

NEET UG 2025 city intimation slip by April 26; download at neet.nta.nic.in

Latest Question