The decreasing values of bond angles from NH3 (106o ) to SbH3 (101o ) down group-15 of the periodic table is due to
increasing bp-bp repulsion
increasing p-orbital character in sp3
decreasing lp-bp repulsion
decreasing electronegativity
D.
decreasing electronegativity
What is crystal lattice?
What is electrovalency?
What bond is present in MgCl2 molecules?
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?
Mock Test Series
