Chemistry-
General
Easy
Question
Which reagent (X) is used to convert I to II
- KBr / NaOH
- Br2/ NaOH
- NaHCO3
- N-Bromo succinimide
The correct answer is: Br2/ NaOH
Related Questions to study
chemistry-
An organic compound A upon reacting with NH3 gives B. On heating B gives C. C in presence of KOH reacts with Br2 to given CH3CH2NH2 . A is :
An organic compound A upon reacting with NH3 gives B. On heating B gives C. C in presence of KOH reacts with Br2 to given CH3CH2NH2 . A is :
chemistry-General
Maths-
If r, s, t are prime numbers and p, q are the positive integers such that the LCM of p, q is , then the number of ordered pair (p, q) is-
Be careful about selecting the r s and t for this particular problem. Because number ways for each selection of r, s and t there are 3 cases. Because there are two values given
p, q . Hence to calculate the total number of ways is to multiply the number of ways for r, number of ways for s and number of ways for t. So, in this way to solve this particular type of problem.
If r, s, t are prime numbers and p, q are the positive integers such that the LCM of p, q is , then the number of ordered pair (p, q) is-
Maths-General
Be careful about selecting the r s and t for this particular problem. Because number ways for each selection of r, s and t there are 3 cases. Because there are two values given
p, q . Hence to calculate the total number of ways is to multiply the number of ways for r, number of ways for s and number of ways for t. So, in this way to solve this particular type of problem.
Maths-
A rectangle has sides of (2m – 1) & (2n – 1) units as shown in the figure composed of squares having edge length one unit then no. of rectangles which have odd unit length –
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Maths-General
chemistry-
Observe the esterification mechanisms for primary and tertiary alcohols
Type-1:
Type-2:
Mechanism:
In the above reaction (P) and (Q) are respectively :
Observe the esterification mechanisms for primary and tertiary alcohols
Type-1:
Type-2:
Mechanism:
In the above reaction (P) and (Q) are respectively :
chemistry-General
physics-
Two identical samples of a gas are allowed to expand (i) isothermally (ii) adiabatically work done is
Two identical samples of a gas are allowed to expand (i) isothermally (ii) adiabatically work done is
physics-General
physics-
A thermodynamic system is taken from state A to B along ACB and is brought back to Along BDA as Shown in the PV diagram. The net work done during the complete cycle is given by the area.
A thermodynamic system is taken from state A to B along ACB and is brought back to Along BDA as Shown in the PV diagram. The net work done during the complete cycle is given by the area.
physics-General
physics-
An ideal gas is taken V path ACBA as Shown in figure, The net work done in the whole cycle is
An ideal gas is taken V path ACBA as Shown in figure, The net work done in the whole cycle is
physics-General
physics-
In the Cyclic Process shown is the figure, the work done by the gas in one cycle
In the Cyclic Process shown is the figure, the work done by the gas in one cycle
physics-General
physics-
A Cyclic process is Shown in the PT diagram. Which of the curve show the same process on a VT diagram?
A Cyclic process is Shown in the PT diagram. Which of the curve show the same process on a VT diagram?
physics-General
physics-
The M.I of a disc of mass M and radius R about an axis passing through the centre O and perpendicular to the plane of dise is If one quarter of the disc is removed the new moment of inertia of disc will be....
The M.I of a disc of mass M and radius R about an axis passing through the centre O and perpendicular to the plane of dise is If one quarter of the disc is removed the new moment of inertia of disc will be....
physics-General
physics-
Work done in the given PV diagram in the cyclic process is
Work done in the given PV diagram in the cyclic process is
physics-General
physics-
In the following indicators diagram, the net amount of work done will be
In the following indicators diagram, the net amount of work done will be
physics-General
physics-