When 6d orbital is complete the entering electron goes into_________________?
A. 7f
B. 7s
C. 7p
D. 7d
Chemistry MCQs
Neutrons moving with an energy of 1.2 MeV are called_______________?
A. Fast neutrons
B. Slow neutrons
C. Moderate neutrons
D. All are possible
Which of the following way in used for classification of chromatography ?
A. Shape
B. Phase
C. Mechanism
D. All
Which of the following technique is used for the separation of insoluble particles from liquids ?
A. Filtration
B. Crystallization
C. Solvent extraction
D. Chromatography
Fluted filter paper is used to__________________?
A. Filter hot solution
B. Avoid premature crystallization
C. Increase the rate of filtration
D. Decrease the area
A substance having very high vapour pressure at its melting point on heating will show_______________?
A. Melting
B. Sublimation
C. Decomposition
D. Condensation
A technique of partition chromatography in which the solvent is in a pool at the bottom of container_______________?
A. Adsorption chromatography
B. Ascending chromatography
C. Radial chromatography
D. Descending chromatography
Branch of chemistry that deals with the complete qualitative and quantitative analysis of a substance is___________________?
A. Stoichio chemistry
B. Physical chemistry
C. Analytical chemistry
D. Quantum chemistry
Estimation of amounts of different components in a sample is________________?
A. Quantitative analysis
B. Qualitative analysis
C. Stochiometery
D. Physical chemistry
The solid which is left over the filter paper as a result of filtration_________________?
A. Insoluble particles
B. residue
C. crystals
D. mud
