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 2007
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The fraction of total volume occupied by the atoms present in a simple cube is
A
$${\pi \over {3\sqrt 2 }}$$
B
$${\pi \over {4\sqrt 2 }}$$
C
$${\pi \over 4}$$
D
$${\pi \over 6}$$
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
CsBr crystallises in a body centered cubic lattice. The unit cell length is 436.6 pm. Given that the atomic mass of Cs = 133 and that of Br = 80 amu and Avogadro number being 6.02 $$ \times $$ 1023 mol$$-$$1, the density of CsBr is
A
4.25 g/cm3
B
42.5 g/cm3
C
0.425 g/cm3
D
8.25 g/cm3
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The appearance of colour in solid alkali metal halides is generally due to
A
interstitial positions
B
F.-centres
C
Schottky defect
D
Frenkel defect
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In a face-centered cubic lattice, a unit cell is shared equally by how many unit cells?
A
2
B
4
C
6
D
8
NEET Subjects