Which of the following organic compounds has same hybridization as its combustion product (CO2)?
A
Ethane
B
Ethyne
C
Ethene
D
Ethanol
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Which of the following compounds will undergo racemisation when solution of KOH hydrolyses?
A
(i) and (ii)
B
(ii) and (iv)
C
(iv)
D
(i) and (iv)
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Light with an energy flux of 25 $$ \times $$ 104 W m$$-$$2 falls on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm2, the average force exerted on the surface is
A
1.25 $$ \times $$ 10$$-$$6 N
B
2.50 $$ \times $$ 10$$-$$6 N
C
1.20 $$ \times $$ 10$$-$$6 N
D
3.0 $$ \times $$ 10$$-$$6 N
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
A conducting sphere of radius R is given a charge Q. The electric potential and the electric field at the centre of the sphere rrespectively are
A
zero and $${Q \over {4\pi {\varepsilon _0}{R^2}}}$$