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Topic Question Set

Q 1 :

Choose the INCORRECT statement             [2026]

  • Among the isotopes of carbon, C13 is a radioactive isotope.

     

  • Carbon cannot exceed its covalency more than four.

     

  • CO2 is the most acidic oxide among the dioxides of group 14 elements.

     

  • Carbon exhibits negative oxidation states along with +4 and +2.

     

(1)

 

Q 2 :

Regarding the hydrides of group 15 elements EH3​(E=N,P,As,Sb), select the correct statement from the following:

A. The stability of hydrides decreases down the group.
B. The basicity of hydrides decreases down the group.
C. The reducing character increases down the group.
D. The boiling point increases down the group.

Choose the correct answer from the options given below:       [2026]

  • A & D only

     

  • A, B, C & D

     

  • A, B & C only

     

  • B & C only

     

(3)