Question
What are the molecular shapes of:
(i) [Ni(CN)4]2– and
(ii) PCl5?
Solution
(i) [Ni(CN)4]2-: Square planar.
(ii) PCl5: Trigonal bipyramidal.
What are the molecular shapes of:
(i) [Ni(CN)4]2– and
(ii) PCl5?
(i) [Ni(CN)4]2-: Square planar.
(ii) PCl5: Trigonal bipyramidal.
Two elements A and B have the electronic configuration as:
A = 1s22s22p63s2 and B = 1s22s22p5
Write the empirical formula of the substance containing A and B.
What type of bonding would you expect between:
(i) a metal and a non-metal
(ii) a non-metal and another non-metal?
Give reasons in one or two sentences for the observation that in their compounds non-metals form anions and not cations.
Out of Na and K, which will form a more stable ionic bond?
Which will have a greater lattice enthalpy: NaCl or MgO?
Is a covalent molecule always formed between two similar atoms?
Why sodium chloride is a solid whereas carbon tetrachloride is a liquid?
Why NaCl gives a white percipitate with AgNO3 solution but CCl4 does not?
Mock Test Series
