A. Aluminium
B. Sodium
C. Carbon
D. Sulphur
Related Mcqs:
- Which of the p-block elements are not representative elements ?
A. Alkali metals (I-A)
B. Group-14 elements (IV-A)
C. Group-18 elements (VIII-A)
D. Halogens (VII-A) - If electricity is passed through CuSO4 solution by using Pt electrode then which of the following possible change occurs ?
A. H2 is deposited at cathode
B. Colour of the solution becomes fade
C. Cu is deposited at anode
D. All are possible - Which one of the following substances conducts electricity by the movement of ions ?
A. Graphite
B. Copper
C. Molten sodium chloride
D. Mercury - Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?
A. ionic substances
B. metallic substances
C. molecular solids
D. covalent network solidsSubmitted by: Mansoor Ul Haque
- Molten NaCl conducts electricity due to the presence of_______________?
A. Free electrons
B. Free molecules
C. Free ions
D. Atoms of Na and Cl - Electricity in voltaic cell is produced due to_________________?
A. neutralization
B. oxidation
C. reduction
D. both B & C - In electrolytic cell electricity carries________________?
A. spontaneous reaction
B. non-wpontaneous reaction
C. neutralization
D. all of above - In electrolytic solution conductance of electricity is due to _____________________?
A. free electrons
B. ions
C. metals
D. electrodes - Which of the following elements has greater 1st ionization energy__________________?
A. B
B. C
C. N
D. O - Which of the following elements react with steam to produce H2 gas?
A. Pd
B. Ni
C. Sn
D. All of the above
