Which of the following can be used in laptops ?
(A) Silver oxide battery
(B) Fuel cell
(C) Nickel cadmium cell
(D) Lead accumulator
Which of the following solution has the highest boiling point ?
(A) 5.85% NaCl Solution
(B) 18.0 % glucose solution
(C) 6.0 % urea solution
(D) All have same boiling point
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
For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as___________________?
(A) qp = qv
(B) qp < qv
(C) qp > qv
(D) qp = qv / 2
Which specie has unpaired electrons in antibonding molecular orbitals_______________?
(A) O2+2
(B) N2-2
(C) B2
(D) O2-2
Quantum number values for 3p orbitals are____________________?
(A) n=3 l=2
(B) n=3 l=0
(C) n=3 l=1
(D) n=3 l=3
Only London dispersion forces are present among the_________________?
(A) Molecules of water in liquid state
(B) Atoms of helium in gaseous state at high temperature
(C) Molecules of hydrogen chloride gas
(D) Molecules of solid iodine
The molecules of CO2 in dry ice form__________________?
(A) Ionic crystal
(B) Covalent crystal
(C) Molecular crystal
(D) Any type of crystal
Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?
(A) one / seventeen
(B) sixteen / seventeen
(C) one / three
(D) two / three
When CO2 is made to react with ethy1 magnesium iodide in dry ether followed by acid hydrolysis yields______________?
(A) Carboxylic acid
(B) Ethanoic acid
(C) Propanoic acid
(D) Butanoic acid