Chemistry-
General
Easy
Question
Graphite is a soft lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite
- has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bonds
- is a non-crystalline substance
- is an allotropic form of carbon
- has only single bonds between carbon atoms
The correct answer is: has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bonds
Related Questions to study
Chemistry-
Electron addition would be easier in
Electron addition would be easier in
Chemistry-General
Chemistry-
Which of the following remains unchanged on descending a group in the periodic table?
Which of the following remains unchanged on descending a group in the periodic table?
Chemistry-General
Chemistry-
Aluminium bears a diagonal relationship with
Aluminium bears a diagonal relationship with
Chemistry-General
Chemistry-
Number of groups and periods respectively present in Modern Periodic Table are
Number of groups and periods respectively present in Modern Periodic Table are
Chemistry-General
Chemistry-
‘x’ is prepared in the laboratory by heating an ammonium salt with caustic soda. Also ‘x’ have following properties: characteristic smell, it turns moist litmus paper blue
‘x’ can be identify as
‘x’ is prepared in the laboratory by heating an ammonium salt with caustic soda. Also ‘x’ have following properties: characteristic smell, it turns moist litmus paper blue
‘x’ can be identify as
Chemistry-General
Chemistry-
Method used for the industrial production of Cl2
Method used for the industrial production of Cl2
Chemistry-General
Chemistry-
Assertion: All minerals are ores.
Reason: Ores are minerals from which metal can be extracted conveniently and economically.
Assertion: All minerals are ores.
Reason: Ores are minerals from which metal can be extracted conveniently and economically.
Chemistry-General
Physics-
Consider the mechanical vibrating systems shown in figure 
. The vibrations are simple harmonic in
Consider the mechanical vibrating systems shown in figure . The vibrations are simple harmonic in
Physics-General
Physics-
The mass M shown in the figure oscillates in simple harmonic motion with amplitude A. The amplitude of the point P is
The mass M shown in the figure oscillates in simple harmonic motion with amplitude A. The amplitude of the point P is
Physics-General
Physics-
The displacement of a particle performing simple harmonic motion is given by, 
where distance is in cm and time is in second. The amplitude of motion is
The displacement of a particle performing simple harmonic motion is given by, where distance is in cm and time is in second. The amplitude of motion is
Physics-General
Physics-
Two simple harmonic motions are represented by 
The ratio of their amplitudes is
Two simple harmonic motions are represented by The ratio of their amplitudes is
Physics-General
Physics-
A 1000 Hz sound wave in air strikes the surface of a lake and penetrates into water. If speed of sound in water is 
,the frequency and wavelength of waves in water are
A 1000 Hz sound wave in air strikes the surface of a lake and penetrates into water. If speed of sound in water is ,the frequency and wavelength of waves in water are
Physics-General
Physics-
Which of the following functions represent a wave?
Which of the following functions represent a wave?
Physics-General
Physics-
The Speed of sound in a mixture of 1 mole of helium and 2 moles of oxygen at 
is
The Speed of sound in a mixture of 1 mole of helium and 2 moles of oxygen at is
Physics-General
Physics-
A sound absorber the sound level by 20 dB. The intensity decreases by a factor of
A sound absorber the sound level by 20 dB. The intensity decreases by a factor of
Physics-General
