A mixture of gases contains H2 and O2 gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture ?
A
16 : 1
B
2 : 1
C
1 : 4
D
4 : 1
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known as
A
dynamo
B
Ni-Cd cell
C
fuel cell
D
electrolytic cell
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
The reaction,
is called
A
Etard reaction
B
Gattermann-Koch reaction
C
Williamson synthesis
D
Williamson continuous etherification process
4
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
An organic compound 'X' having molecular formula C5H10O yields phenylhydrazone and gives negative response to the iodoform test and Tollens' test. It produces n-pentane on reduction. 'X' could be