1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one is a nucleophilic substitution reaction among the following ?
A
AIPMT 2011 Prelims Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 93 English Option 1
B
AIPMT 2011 Prelims Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 93 English Option 2
C
AIPMT 2011 Prelims Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 93 English Option 3
D
AIPMT 2011 Prelims Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 93 English Option 4
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The Lassaigne's extract is boiled with conc. HNO3 while testing for halogens. By doing so it
A
decomposes Na2S and NaCN, formed
B
helps in the precipitation of AgCl
C
increases the solubility product of AgCl
D
increases the concentration of N$$_3^ - $$ ions
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
In the following reactions,

AIPMT 2011 Prelims Chemistry - Alcohol, Phenols and Ethers Question 24 English
the major products (A) and (C) are respectively
A
AIPMT 2011 Prelims Chemistry - Alcohol, Phenols and Ethers Question 24 English Option 1
B
AIPMT 2011 Prelims Chemistry - Alcohol, Phenols and Ethers Question 24 English Option 2
C
AIPMT 2011 Prelims Chemistry - Alcohol, Phenols and Ethers Question 24 English Option 3
D
AIPMT 2011 Prelims Chemistry - Alcohol, Phenols and Ethers Question 24 English Option 4
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Light of two different frequencies whose photons have energies 1 eV and 2.5 eV respectively illuminate a metallic surface whose work function is 0.5 eV successively. Ratio of maximum speeds of emitted electrons will be
A
1 : 4
B
1 : 2
C
1 : 1
D
1 : 5
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