Welcome to your E and PP -4
1.
Boron does not form B³⁺ because of
2.
Which transition metal has lowest melting point?
3.
Which element has highest electronegativity?
4.
Which metal does NOT show variable oxidation states?
5.
Which s-block element has the highest hydration energy?
6.
Which halogen acid is strongest?
7.
Which halogen shows maximum bond dissociation energy?
8.
Solubility of alkali metal carbonates in water
9.
Which metal shows maximum oxidation states?
10.
Noble gases are monoatomic because
11.
d-block elements have high melting points due to
12.
Fluorine shows lower electron affinity than chlorine due to
13.
Which oxide is amphoteric?
14.
Zn is not a transition element because
15.
Which element shows strongest reducing nature?
16.
Li shows diagonal relationship with
17.
Transition metals form complexes because
18.
Which transition metal shows +7 oxidation state?
19.
Inert pair effect is maximum in
20.
Which element shows amphoteric oxide?
21.
Which alkaline earth metal compound is covalent?
22.
Sc³⁺ compounds are colourless because
23.
Which alkaline earth metal does NOT impart colour to flame?
24.
Which s-block metal is hardest?
25.
Transition metals are placed between
26.
Alkali metals show +1 oxidation state because
27.
Which element shows maximum catenation?
28.
Which block shows maximum number of elements?
29.
Fe³⁺ is more stable than Fe²⁺ because
30.
Maximum oxidation state shown by sulphur is
31.
Transition metal compounds are coloured due to
32.
Sodium imparts yellow colour to flame due to
33.
Which noble gas forms maximum compounds?
34.
Transition metals act as catalysts due to
35.
p-block elements show variable oxidation states due to
36.
Which element forms acidic oxide?
37.
Lanthanide contraction is due to
38.
Which p-block element forms acidic oxide?
39.
Cu⁺ is colourless while Cu²⁺ is coloured because
40.
Maximum oxidation state of group 15 elements is
41.
Low ionization energy of alkali metals is mainly due to
42.
Magnetic moment of transition metals is due to
43.
Which halogen shows maximum oxidizing power?
44.
Which metal shows maximum catalytic activity?
45.
Which oxide is strongly basic?
