A. +ve
B. -ve
C. Neutral
D. None of them
Submitted by: Aamir khan Hullio
Related Mcqs:
- Mass spectrometer is used to determine Mass number of isotopes and___________________?
A. Atomic number
B. Relative abundance
C. Electronic configuration
D. All of the above - Qualitative analysis is carried out for _________________?
A. identification of elements
B. estimation of amounts of elements
C. molar ration of elements
D. molar volume of elements - Which of following metals can be displaced by all other metals from its solution ?
A. Ag
B. A
C. Au
D. Cu - The molecules of CO2 in dry ice form__________________?
A. Ionic crystal
B. Covalent crystal
C. Molecular crystal
D. Any type of crystal - Bohrs model is contradicted by__________________?
A. Plancks theory
B. Dual nature of matter
C. Heisenbergs uncertainty principle
D. All of these - During which process empty spaces between particles become minimum ?
A. ionization
B. condensation
C. fusion
D. evaporation - The amount of heat absorbed when one mole of a liquid is changed into gas at its boiling point is_____________________?
A. Molar heat of sublimation
B. Molar heat of fusion
C. Molar heat of vapourization
D. Latent heat of that liquid - Colour of fluorescene produced by cathode rays depends upon________________?
A. Temperature
B. Pressure
C. Volume
D. Composition of glass - The bond angle between hybrid orbitals in methane CH3 is___________?
A. 115.5°
B. 109.5°
C. 105. 7°
D. 180°Submitted by: Muhammad Ali Kunbhar
- Nitrate (NO3) ions are obtained by the process of __________?
A. Nitrification
B. Fermentation
C. Denitrification
D. None of theseSubmitted by: Sana
