Organic Chemistry
Some Basic Concepts of Organic Chemistry
MCQ (Single Correct Answer)MCQ (Multiple Correct Answer)
Alcohol, Phenols and Ethers
MCQ (Single Correct Answer)
Aldehydes, Ketones and Carboxylic Acids
MCQ (Single Correct Answer)MCQ (Multiple Correct Answer)
Organic Compounds Containing Nitrogen
MCQ (Single Correct Answer)
Chemistry in Everyday Life
MCQ (Single Correct Answer)
1
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii? (Numbers in the parenthesis are atomic numbers)
A
Zr(40) and Hf(72)
B
Zr(40) and Ta(73)
C
Ti(22) and Zr(40)
D
Zr(40) and Nb(41)
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Magnetic moment 2.84 B.M. is given by (At. nos. Ni = 28, Ti = 22, Cr = 24, Co = 27)
A
Cr2+
B
Co2+
C
Ni2+
D
Ti3+
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Magnetic moment 2.83 BM is given by which of the following ions?
(At. nos. Ti = 22, Cr = 24, Mn = 25, Ni = 28)
A
Ti3+
B
Ni2+
C
Cr3+
D
Mn2+
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Reason of lanthanoid contraction is
A
negligible screening effect of 'f'- orbitals
B
increasing nuclear charge
C
decreasing nuclear charge
D
decreasing screening effect.
NEET Subjects