1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following compounds has the most acidic nature?
A
AIPMT 2010 Prelims Chemistry - Alcohol, Phenols and Ethers Question 28 English Option 1
B
AIPMT 2010 Prelims Chemistry - Alcohol, Phenols and Ethers Question 28 English Option 2
C
AIPMT 2010 Prelims Chemistry - Alcohol, Phenols and Ethers Question 28 English Option 3
D
AIPMT 2010 Prelims Chemistry - Alcohol, Phenols and Ethers Question 28 English Option 4
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Given are cyclohexanol (I), acetic acid (II), 2, 4, 6-trinitrophenol (III) and phenol (IV). In these the order of decreasing acidic character will be
A
III > II > IV > I
B
II > III > I > IV
C
II > III > IV > I
D
III > IV > II > I
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A beam of cathode rays is subjected to crossed electric (E) and magnetic fields (B). The fields are adjusted such that the beam is not deflected. The specific charge of the cathode rays is given by

(Where V is the potential difference between cathode and anode)
A
$${{{B^2}} \over {2V{E^2}}}$$
B
$${{2V{B^2}} \over {{E^2}}}$$
C
$${{2V{E^2}} \over {{B^2}}}$$
D
$${{{E^2}} \over {2V{B^2}}}$$
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Electromagnets are made of soft iron because soft iron has
A
low retentivity and high coercive force
B
high retentivity and high coercive force
C
low retentivity and low coercive force
D
high retentivity and low coercive force