Chemistry-
General
Easy
Question
During electrolysis process of fused CaH2, H2 is liberated at :
- Anode
- Cathode
- Either a or b
- None of these
The correct answer is: Anode
Related Questions to study
chemistry-
Assertion (A): Carbon exhibits catenation to maximum extent.
Reason (R): Valency of carbon is 4.
Assertion (A): Carbon exhibits catenation to maximum extent.
Reason (R): Valency of carbon is 4.
chemistry-General
chemistry-
Statement - A :Carbon has two unpaired electrons in its ground state.
Statement - B :Carbon forms 4 covalent bonds in all its compounds.
Statement - C :Carbon exists in ground state in all its compounds.
Statement - A :Carbon has two unpaired electrons in its ground state.
Statement - B :Carbon forms 4 covalent bonds in all its compounds.
Statement - C :Carbon exists in ground state in all its compounds.
chemistry-General
chemistry-
The end product ‘Z’ in the following reaction, 
is
The end product ‘Z’ in the following reaction, is
chemistry-General
chemistry-
Identify Z in 
Identify Z in
chemistry-General
chemistry-
Westrosol is
Westrosol is
chemistry-General
chemistry-
Consider the given figure showing that possible levels of the energy of 
ion depending on internuclear distance versus potential energy of the system .
It may be easily assumed that the ground state of the molecular hydrogen ion, corresponds to the lowest level which means that
Consider the given figure showing that possible levels of the energy of ion depending on internuclear distance versus potential energy of the system .
It may be easily assumed that the ground state of the molecular hydrogen ion, corresponds to the lowest level which means that
chemistry-General
chemistry-
Which bond angle 
would result in the maximum dipole moment for the triatomic molecule XY2 as shown below.
Which bond angle would result in the maximum dipole moment for the triatomic molecule XY2 as shown below.
chemistry-General
physics-
A long rubber tube having mass 0.9kg is fastened to a fixed support and the free end of the tube is attached to a chord which passes over a pulley and supports an object, with a mass of 5kg as shown in figure. If the tube is struck by a transverse blow at one end, the time required for the pulse to reach the other end is
A long rubber tube having mass 0.9kg is fastened to a fixed support and the free end of the tube is attached to a chord which passes over a pulley and supports an object, with a mass of 5kg as shown in figure. If the tube is struck by a transverse blow at one end, the time required for the pulse to reach the other end is
physics-General
physics-
A plane progressive wave is shown in the adjoining phase diagram. The wave equation of this wave, if its position is shown at t=0, is
A plane progressive wave is shown in the adjoining phase diagram. The wave equation of this wave, if its position is shown at t=0, is
physics-General
physics-
A rod PQ of length ‘L’ is hung from two identical wires A and B. A block of mass ‘m’ is hung at point R of the rod as shown in figure. The value of ‘x’ so that the fundamental mode in wire A is in resonance with first overtone of B is
A rod PQ of length ‘L’ is hung from two identical wires A and B. A block of mass ‘m’ is hung at point R of the rod as shown in figure. The value of ‘x’ so that the fundamental mode in wire A is in resonance with first overtone of B is
physics-General
physics-
The length of the wire shown in figure between the pulley is 1.5m and its mass is 12 gm. Find the frequency of vibration with which the wire vibrates in two loops leaving the middle point of the wire between the pulleys at rest
The length of the wire shown in figure between the pulley is 1.5m and its mass is 12 gm. Find the frequency of vibration with which the wire vibrates in two loops leaving the middle point of the wire between the pulleys at rest
physics-General
physics-
In a sonometer wire, the tension is maintained by suspending a 20kg mass from the free end of the wire. The fundamental frequency of vibration is 300 Hz
If the tension is provided by two masses of 6kg and 14kg suspended from a pulley as show in the figure the fundamental frequency will
In a sonometer wire, the tension is maintained by suspending a 20kg mass from the free end of the wire. The fundamental frequency of vibration is 300 Hz
If the tension is provided by two masses of 6kg and 14kg suspended from a pulley as show in the figure the fundamental frequency will
physics-General
physics-
A train A crosses a station with a speed of 40 m/ s and whistles a short pulse of natural frequency 
. Another train B is approaching towards the same station with the same speed along a parallel track. Two tracks are d = 99m apart. When train A whistles, train B is 152m away from the station as shown in fig. If velocity of sound in air 
, calculate frequency of the pulse heard by driver of train B
A train A crosses a station with a speed of 40 m/ s and whistles a short pulse of natural frequency . Another train B is approaching towards the same station with the same speed along a parallel track. Two tracks are d = 99m apart. When train A whistles, train B is 152m away from the station as shown in fig. If velocity of sound in air , calculate frequency of the pulse heard by driver of train B
physics-General
physics-
Two tuning forks P and Q are vibrated together. The number of beats produced are represented by the straight line OA in the following graph. After loading Q with wax again these are vibrated together and the beats produced are represented by the line OB. If the frequency of P is 341 Hz, the frequency of Q will be ___
Two tuning forks P and Q are vibrated together. The number of beats produced are represented by the straight line OA in the following graph. After loading Q with wax again these are vibrated together and the beats produced are represented by the line OB. If the frequency of P is 341 Hz, the frequency of Q will be ___
physics-General
physics-
AB is a cylinder of length 1m fitted with a thin flexible diaphragm C at middle and two other thin flexible diaphragms A and B at the ends as shown. The portions AC and BC contain hydrogen and oxygen gases respectively. The diaphragms A and B are set into vibrations of the same frequency. The minimum frequency of these vibrations for which diaphragm C is a node is (Under the conditions of the experiment the velocity of sound in hydrogen is 1100 m/s and oxygen 300 m/s)
AB is a cylinder of length 1m fitted with a thin flexible diaphragm C at middle and two other thin flexible diaphragms A and B at the ends as shown. The portions AC and BC contain hydrogen and oxygen gases respectively. The diaphragms A and B are set into vibrations of the same frequency. The minimum frequency of these vibrations for which diaphragm C is a node is (Under the conditions of the experiment the velocity of sound in hydrogen is 1100 m/s and oxygen 300 m/s)
physics-General
