Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it ?  Option: 1

In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it ?
 

Option: 1

HF<HCl<HBr<HI : Increasing acidic strength


Option: 2

H_{2}O<H_{2}S<H_{2}Se<H_{2}Te : Increasing pK_{a} values


Option: 3

NH_{3}<PH_{3}<AsH_{3}<SbH_{3} : Increasing acidic character

 


Option: 4

CO_{2}<SiO_{2}<SnO_{2}<PbO_{2} : Increasing oxidizing power


Answers (1)

best_answer

(1) is correct. On moving down the group, acidic strength increases

(2) is incorrect. Greater the acidic strength, greater is the Ka value and lesser is the pKa value.

(3) is correct. On moving down the group, acidic strength increases

(4) is correct. On moving down the group 14, stability of +4 oxidation state decreases and the tendency to accept electrons increases. Thus, the oxidising power increases

Posted by

shivangi.shekhar

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

Before NEET, CMC Vellore’s unique MBBS admissions tested aptitude along with merit; paper-leak restarts debate
anam-khan

NEET-UG paper leak fallout: Latur admin orders crackdown on illegal coaching classes
anam-khan

Re-NEET in 30 days a ‘massive logistical challenge’, NTA adopts ‘zero trust’ policy: Report

Latest Question