Group VIB of transition elements contains___________________?

A. Zn cd hg
B. Fe ru os
C. Cr mo w
D. Mn te re

The leements in which d or f orbitals are in the process of completion are__________________?

A. Outer transition elements
B. Inner transition elements
C. Typical transition elements
D. Transition elements

The melting points and boiling points upto meddle of 3d- series ____________________?

A. Increases
B. Decreases
C. Remain same
D. No regular trend

Pure metal__________________?

A. Corrode slowly
B. Corrode rapidly
C. Does not corrode easily
D. None of these

The correct electronic configuration of Cr is____________________?

A. [ar]4s23d4
B. [ar] 4s23d4
C. [ar]4s03d5
D. [ar]4s13d5

The element that act as anode always have ______________ position in electrochemical cell?

A. Higher
B. Lower
C. In middle
D. No effect of position

Greater value of standard reduction potential greater will be tendency__________________?

A. To get oxidized
B. To get reduced
C. To accept electrons
D. Both b and c

Secondary cell is_____________________?

A. Rechargeable
B. Non rechargeable
C. Electrolytic cell
D. Daniel cell

Density of H2SO4 in lead accumulator is__________________?

A. 1.25g/cm3
B. 1.3g/cm3
C. 1.20g/cm3
D. 1.15g/cm3

In alkaline battery the anode is made up of______________________?

A. Mno2
B. Zn
C. Ago2
D. Cadmium