If temperature of gallium arsenide is increased then its conductivity will___________________?

A. decrease
B. increase
C. remains constant
D. first decreases then increases

Related Mcqs:

For a gas where volume and pressures are 1dm3 and 2 atm respectively what should be its new volume when pressure is increased to 6 atm at constant temperature ?
A. 1/2dm3
B. 1/3dm3
C. 1/4dm3
D. 2/3dm3
If a graph is plotted between temperature on x-axis and volume on y-axis for 1 mole of gas then we get straight line which cuts the temperature exis at________________?
A. 0?C
B. 273.16K
C. ?273.16 K
D. ?273.16?C
At constant temperature the pressure of an ideal gas is doubled its density becomes_______________?
A. Half
B. Double
C. Same
D. None
Rate of filtration can be increased by applying gentle suction______________?
A. Gooch crucible
B. Filter paper
C. Sintered crucible
D. All of the above
Black foot disease is caused by the pollution of groundwater as a consequence of increased seepage of:__________?
A. Nitrates
B. Fluorides
C. Arsenic
D. Mercury
Submitted by: Abid Hussain
Octane rating of Gasoline can be increased by __________?
A. Refining
B. Cracking
C. Reforming
D. None of These
Submitted by: Aamir khan Hullio
The quantity of petrol can be increased by ___________?
A. Reforming
B. Induction fueling
C. Cracking
D. Refining
Submitted by: Aamir khan Hullio
The quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________________?
A. vaporization
B. evaporation
C. crystallization
D. sublimation
When 0.01 moles of NaOH are added to a buffer solution, its PH changes from 4.745 to 4.832. What is its?
A. 0.115
B. 0.900
C. 0.015
D. 0.215
Submitted by: Muhammad Ali Kunbhar
CO2 is gas while SiO2 is solid at room temperature?
A. carbon is non-metal while silicon is semi-metal
B. CO2 is an independent molecule while SiO2 has network covalent structure
C. CO2 forms multiple bond while silicon does not form multiple bonds
D. Silicon has all sigma bonds