Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-5470-145
+91 7353221155
Use Coupon: CART20 and get 20% off on all online Study Material
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
OTP to be sent to Change
This section contains multiple questions. Each question contains STATEMENTS 1 (Assertion) and STATEMENT 2 (Reason). Each question has 4 choices (A), (B), (C), and (D), out of which ONLY ONE is correct.
(A) Statement 1 is True and statement 2 is True; statement 2 is correct explanation for statement 1.
(B) Statement 1 is True and statement 2 is True; statement 2 is not a correct explanation for statement 1.
(C) Statement 1 is True and statement 2 is False.
(D) Statement 1 is False and statement 2 is True.
Statement 1: Among the 16th group elements, oxygen has the lowest value of first electron affinity.
And
Statement 2: Oxygen has extremely small size.
(A) Electron affinity values of 16th group elements are: (in kJ mol–1)
S: –200; Se: - 195; Te – 190.1; Br: - 180; O: - 141
Because of very small size of oxygen atom (and the high electron density), the first incoming electron is repelled by the electrons of atom present in very small second orbit.
Get your questions answered by the expert for free
You will get reply from our expert in sometime.
We will notify you when Our expert answers your question. To View your Question
Win Gift vouchers upto Rs 500/-
Register Yourself for a FREE Demo Class by Top IITians & Medical Experts Today !