Chemistry-
General
Easy
Question
In the reaction 
A is
- Both (A) and (B)
The correct answer is:
Carbonyl group acts as a deactivating and meta directing group.
Related Questions to study
physics-
A bar magnet of length 3 cm has points A and B along its axis at distances of 24 cm and 48 cm on the opposite sides. Ratio of magnetic fields as these points will be :
A bar magnet of length 3 cm has points A and B along its axis at distances of 24 cm and 48 cm on the opposite sides. Ratio of magnetic fields as these points will be :
physics-General
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The reagent best suitable for the following transformation is 
The reagent best suitable for the following transformation is
chemistry-General
maths-
Statement-I : if z1 and z2 are two nonzero complex numbers such that 
then 
is π/2.
Statement-II : z1 and z2 are two complex numbers such that 
and is π/2 then 
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Statement-II : z1 and z2 are two complex numbers such that and is π/2 then
maths-General
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Consider the following reaction 
The product A is
Consider the following reaction The product A is
chemistry-General
chemistry-
Benzoylation of phenol in alkaline medium is known is known as
Benzoylation of phenol in alkaline medium is known is known as
chemistry-General
physics-
In the figure shown a current I1 is established in the long straight wire AB. Another wire CD carrying current 
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physics-General
physics-
A mass spectrometer is a device which select particle of equal mass. An iron with electric charge 
starts at rest from a source S and is accelerated through a potential difference V. It passes through a hole into a region of constant magnetic field 
perpendicular to the plane of the paper as shown in the figure. The particle is deflected by the magnetic field and emerges through the bottom hole at a distance d from the top hole. The mass of the particle is
A mass spectrometer is a device which select particle of equal mass. An iron with electric charge starts at rest from a source S and is accelerated through a potential difference V. It passes through a hole into a region of constant magnetic field perpendicular to the plane of the paper as shown in the figure. The particle is deflected by the magnetic field and emerges through the bottom hole at a distance d from the top hole. The mass of the particle is
physics-General
chemistry-
Find out B in the given reactions 
Find out B in the given reactions
chemistry-General
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A current I flows a closed path in the horizontal plane of the circle as shown in the figure. The path consists of eight cars with alternating radii r and 2r. Each segment of arc subtends equal angle at the common centre P. The magnetic field produced by current path at point P is
A current I flows a closed path in the horizontal plane of the circle as shown in the figure. The path consists of eight cars with alternating radii r and 2r. Each segment of arc subtends equal angle at the common centre P. The magnetic field produced by current path at point P is
physics-General
physics-
Infinite number of straight wires each carrying current I are equally placed as shown in the figure. Adjacent wires have current in opposite direction. Net magnetic field at point P is
Infinite number of straight wires each carrying current I are equally placed as shown in the figure. Adjacent wires have current in opposite direction. Net magnetic field at point P is
physics-General
physics-
The charges 1, 2, 3 are moves in uniform transverse magnetic field then:–
The charges 1, 2, 3 are moves in uniform transverse magnetic field then:–
physics-General
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Find out B in the given reactions 
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chemistry-General
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A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop. If steady current I is established in the wire as shown in the figure, the loop will
A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop. If steady current I is established in the wire as shown in the figure, the loop will
physics-General
physics-
Figure shows a square current carrying loop ABCD of side 10 cm and current i = 10 A. The magnetic moment 
of the loop is
Figure shows a square current carrying loop ABCD of side 10 cm and current i = 10 A. The magnetic moment of the loop is
physics-General
physics-
A conducting rod of length l and mass m is moving down a smooth inclined plane of inclination qwith constant velocity v in fig. A current I is flowing in the conductor in a direction perpendicular to paper inwards. A vertically upward magnetic field B exists in space. Then magnitude of magnetic field B is
A conducting rod of length l and mass m is moving down a smooth inclined plane of inclination qwith constant velocity v in fig. A current I is flowing in the conductor in a direction perpendicular to paper inwards. A vertically upward magnetic field B exists in space. Then magnitude of magnetic field B is
physics-General
