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.Management Sciences
Category: Chemistry Mcqs
Elimination bimolecular reactions involve____________________________?
A. first order kinetics
B. second order kinetics
C. third order kinetics
D. zero order kinetics
Which of the following ion formation is always exothermic ?
A. Uni-negative
B. Uni-positive
C. Di-negative
D. Di-positive
Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is__________________?
A. 2.0 x 10-10 mol dm-3
B. 1.414 x 10-5 mol dm-3
C. 1.0 x 10-10 mol dm-3
D. 1.0 x 10-5 mol dm-3
Purines and pyrimidines are__________________?
A. Enzymes
B. Nitrogenous bases
C. Carbohydrates
D. Lipids
The conversion of vapours back into their liquid state is called__________________?
A. crystallization
B. evaporization
C. vaporization
D. condensation
Different components of a mixture have different Rf values due to________________?
A. Polar solvent used
B. Combination of solvents used
C. Their different distribution coefficients in the solvent
D. Distributive law
Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing___________________?
A. NH2Cl
B. NHCI2
C. NCI2
D. all of the above
Which of the following elements conduct electricity and also melts below 100°C ?
A. Aluminium
B. Sodium
C. Carbon
D. Sulphur
The location of transition elements is in between__________________?
A. lanthanides & actinides
B. s and p block elements
C. chalcogens and halogens
D. d and f block elements
Best position of hydrogen in the periodic table is above I.A Group which is mainly due to_______________?
A. Both are electropositive
B. Similar outer most shell electronic configuration
C. Both form ionic compounds
D. All
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