Chemistry-
General
Easy
Question
An alkyl halide may be converted into an alcohol by
- Addition
- Substitution
- Dehydrohalogenation
- Elimination
The correct answer is: Substitution
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Preparation of alkyl halides in laboratory is least preferred by
Preparation of alkyl halides in laboratory is least preferred by
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Binding energy per nucleon verses mass number curve for nuclei is shown in the figure.
and
are four nuclei indicated on the curve. The process that would release energy is

Binding energy per nucleon verses mass number curve for nuclei is shown in the figure.
and
are four nuclei indicated on the curve. The process that would release energy is

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The energy levels of the hydrogen spectrum is shown in figure. There are some transition
and
Transition
and
respectively represent

The energy levels of the hydrogen spectrum is shown in figure. There are some transition
and
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and
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Energy levels A, B, C of a certain atom corresponding to increasing values of energy,
If
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to
to
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respectively, which of the following statements is correct

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If
are the wavelength of radiations corresponding to the transitions
to
to
and
to
respectively, which of the following statements is correct

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Binding energy per nucleon plot against the mass number for stable nuclei is shown in the figure. which curve is correct

Binding energy per nucleon plot against the mass number for stable nuclei is shown in the figure. which curve is correct

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Drawings I and II show two samples of electric field lines

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Figure shows lines of force for a system of two point charges. The possible choice for the charges is

Figure shows lines of force for a system of two point charges. The possible choice for the charges is

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Figure shows the electric lines of force emerging from a charged body. If the electric field at ‘A’ and ‘B’ are EA and EB respectively and if the displacement between ‘A’ and ‘B’ is ‘r’ then

Figure shows the electric lines of force emerging from a charged body. If the electric field at ‘A’ and ‘B’ are EA and EB respectively and if the displacement between ‘A’ and ‘B’ is ‘r’ then

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Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the positive charge kept at the centre ‘O’ is

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A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity
as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time interval between minimum and maximum frequency as received by the detector

A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity
as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time interval between minimum and maximum frequency as received by the detector

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A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity
as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time at which the detector will hear the maximum frequency for the 1st time

A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity
as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The time at which the detector will hear the maximum frequency for the 1st time

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A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity
as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The frequency as received by the detector when it rotates by an angle 

A detector is moving in a circular path of radius r in anticlock wise direction with a constant angular velocity
as shown in the figure At time t=0, it starts from the location shown at A, assuming source at rest The frequency as received by the detector when it rotates by an angle 

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Two speakers
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Two speakers
driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s If he continous to walk along the same line how many more maxima can he hear

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Two speakers
driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s The angle θ at which he will hear maximum intensity for first time?

Two speakers
driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s The angle θ at which he will hear maximum intensity for first time?

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Two speakers
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Two speakers
driven by the same amplifiers are placed at y=1m and y=-1m The speakers vibrate in phase at 600 Hz A man stands at a point on x-axis at a very large distance form the origin and starts moving parallel to y-axis The speed of sound in air is 330 m/s The angle θ at which intensity of sound drop to a minimum for the first time

physics-General