MEDIUM
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Important Questions on The p-Block Elements

MEDIUM
The species in which the N atom is a state of sp hybridization is:
EASY
Which of the following pairs of compounds is isoelectronic and isostructural?
EASY
Complete and balance the following chemical equations: P4+NaOH+H2OInert atm.heat_____+_____.
EASY
The number of sigma σ and pi π bonds in pent- 2 -en- 4 -yne is:
MEDIUM
The hybridisation of atomic orbitals of nitrogen in NO2+, NO3- and NH4+ , respectively are:
EASY
Which of the following conversions involves change in both shape and hybridisation?
MEDIUM
Which one the following species has plane triangular shape?
HARD
Based on the compounds of group 15 elements, the correct statement(s) is (are)
MEDIUM
The number of σ and π- bonds in 2- formylbenzoic acid are respectively
MEDIUM
What happens when yellow phosphorus is heated with dilute NaOH solution?
EASY
The number of sp2 hybrid orbitals in a molecule of benzene is:
EASY

The total number of σ and π-bonds present in the following compound are

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EASY
In CO2 molecule, the hybridizations of carbon and oxygen atoms are respectively
MEDIUM
Which of the following species contains equal number of σ - and π - bonds?
HARD
Dissolving 1.24 g of white phosphorous in boiling NaOH solution in an inert atmosphere gives a gas Q. The amount of CuSO4 (in g) required to completely consume the gas Q is____[Given: Atomic mass of H=1, O=16, Na=23, P=31, S=32, Cu=63]