(A) 6 x 1022
(B) 1.2 x 1023
(C) 12 x 1023
(D) 6 x 1023
MCQs Master
(A) Hydrogen present in the air reacts with nitrogen forming NH3
(B) Formation of sulphonic acid by urea of urine
(C) Hydrolysis of urea of urine by urease of atmosphere into NH3 and CO2
(D) The reaction of CO2of atmosphere with urea mononitrate in urine
August 4, 2021
(A) Change in temperature of solutions takes place.
(B) Transference of solvent from solution A to that of B take place
(C) Transference of solvent from solution B to that of A takes place
(D) No transference of solvent from solution A to that of B takes place
August 4, 2021
(A) Nucleoophilic addition reactions
(B) Electrophilic subsitution reactions
(C) Nucleophilic substitution reactions
(D) Electrophilic addition reactions
August 4, 2021
(A) Benzene and Chlorobenzene
(B) Chloral and benzene
(C) Chlorobenzene and chlorine
(D) Chloral and Chlorobenzene
August 4, 2021
(A) Plasmodesmata
(B) Nucleus
(C) Cell wall
(D) All membrane systems
August 4, 2021
(A) 11.2 litres
(B) 2.24 litres
(C) 22.4 litres
(D) 1 litre
August 4, 2021
(A) Van der Waal forces or London dispersion forces
(B) Hydrogen bonds
(C) Covalent forces
(D) All of these.
August 4, 2021
(A) None
(B) s-orbitals
(C) d-orbitals
(D) p-orbitals
August 4, 2021
(A) ZnO
(B) Cr2O3
(C) SnO
(D) MgO
August 4, 2021