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