A solid may be made up of_________________?
A solid may be made up of_________________?
A. Atoms
B. Ions
C. Molecules
D. A, B, and C
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Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?
Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?A. Urea
B. Calcium superphosphate
C. Diammonium phosphate
D. Potassium nitrateAn acid-Base Reaction is always a/an __________?
An acid-Base Reaction is always a/an __________?A. Endothermic
B. Exothermic
C. Fission
D. FusionWhich of the following molecule is polar__________________?
Which of the following molecule is polar__________________?A. CCI4
B. CO2
C. BF3
D. none of the aboveThe boiling point increases down the zero group element due to_________________?
The boiling point increases down the zero group element due to_________________?A. Ion dipole forces
B. London forces
C. Hydrogen bonding
D. Dipole dipole forcesThe unit of the rate constant (k) is same as that of rate of reaction________________?
The unit of the rate constant (k) is same as that of rate of reaction________________?A. First order reaction
B. Second order reaction
C. Zero order reaction
D. Third order reactionThe relative lowering of vapour pressure is_____________________?
The relative lowering of vapour pressure is_____________________?A. equal to the mole fraction of solvent
B. equal to the mole fraction of solute
C. directly proportional to the mole fraction of solute
D. both B & C