Chemistry-
General
Easy
Question
-3,6-Dimethyl oct-4-ene (A) exists in two diastereomers (I)and (II)
A) 
I) 
II) 
If the stereochemistry about the double bond in(A) is , two diastereomers (I) and (II) exist as shown above
Which statement is correct?
- (I)is optically inactive due to the presence of plane of symmetry
- (I)is optically inactive due to the presence of centre of symmetry
- (II)is optically inactive due to the presence of plane of symmetry
- (II)is optically inactive due to the presence of centre of symmetry
The correct answer is: (II)is optically inactive due to the presence of centre of symmetry
(II) is O.I.A.(meso) due to centre of symmetry
Related Questions to study
Chemistry-
Arrange the following alcohols in the decreasing order of dehydration with conc.
i) 
ii) 
iii) 
iv) 
Arrange the following alcohols in the decreasing order of dehydration with conc.
i)
ii)
iii)
iv)
Chemistry-General
Chemistry-
Give the decreasing order of the stability of the following or increasing order of heat of combustion
I) 
II) 
III) 
Give the decreasing order of the stability of the following or increasing order of heat of combustion
I)
II)
III)
Chemistry-General
Chemistry-
Which one is the most easily dehydrated?
I) 
II) 
III) 
Which one is the most easily dehydrated?
I)
II)
III)
Chemistry-General
Chemistry-
The products (c) and (D) are:
The products (c) and (D) are:
Chemistry-General
Chemistry-
In which of the following, the 
is maximum?
In which of the following, the is maximum?
Chemistry-General
Chemistry-
In the reaction:
Reagent used is:
In the reaction:
Reagent used is:
Chemistry-General
Chemistry-
Intermediate (B) and product (C) are:
Intermediate (B) and product (C) are:
Chemistry-General
Physics-
The angular frequency of small oscillations of the system shown in the figure is
The angular frequency of small oscillations of the system shown in the figure is
Physics-General
Physics-
Time period of a block when suspended from the upper plate of a parallel plate capacitor by a spring of stiffness k is T. When block is uncharged. If a charge q is given to the block them, the new time period of oscillation will be
Time period of a block when suspended from the upper plate of a parallel plate capacitor by a spring of stiffness k is T. When block is uncharged. If a charge q is given to the block them, the new time period of oscillation will be
Physics-General
Physics-
A block of mass m compresses a spring of stiffness k through a distance 
as shown in the figure. If the block is not fixed to the spring, the period of motion of the block is
A block of mass m compresses a spring of stiffness k through a distance as shown in the figure. If the block is not fixed to the spring, the period of motion of the block is
Physics-General
Physics-
A particle moves on x-axis according to the equation 
, the motion is simple harmonic
A particle moves on x-axis according to the equation , the motion is simple harmonic
Physics-General
Physics-
Two blocks A and B each of mass m are connected by a massless spring of natural length L and spring constant k. The blocks are initially resting on a smooth horizontal floor with the spring as its natural length, as shown in figure.
A) third identical block C, also of mass m moves on the floor with a speed v along the line joining A and B collides with A, elastically, then
Two blocks A and B each of mass m are connected by a massless spring of natural length L and spring constant k. The blocks are initially resting on a smooth horizontal floor with the spring as its natural length, as shown in figure.
A) third identical block C, also of mass m moves on the floor with a speed v along the line joining A and B collides with A, elastically, then
Physics-General
Physics-
One end of a spring of force constant k is fixed to a vertical wall and the other to a block of mass m resting on a smooth horizontal surface. There is another wall at a distance x0 from the block. The spring is then compressed by 2x0 and released. The time taken to strike the wall is
One end of a spring of force constant k is fixed to a vertical wall and the other to a block of mass m resting on a smooth horizontal surface. There is another wall at a distance x0 from the block. The spring is then compressed by 2x0 and released. The time taken to strike the wall is
Physics-General
Physics-
A spring is loaded with two blocks m1 and m2 where m1 is rigidly fixed with the spring and m2 is just kept on the block m1 as shown in the figure. The maximum energy of oscillation that is possible for the system having the block m2 in contact with m1 is
A spring is loaded with two blocks m1 and m2 where m1 is rigidly fixed with the spring and m2 is just kept on the block m1 as shown in the figure. The maximum energy of oscillation that is possible for the system having the block m2 in contact with m1 is
Physics-General
Physics-
Minimum and maximum values of F to keep the cylinder in static equilibrium just after the water starts to spill through the hole. If the co-efficient of static friction between contact surfaces is 0.01.
Minimum and maximum values of F to keep the cylinder in static equilibrium just after the water starts to spill through the hole. If the co-efficient of static friction between contact surfaces is 0.01.
Physics-General
