EASY
Earn 100

Determine the product formed when phosphine gas is mixed with chlorine gas

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Important Questions on p-Block Elements

MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Strong reducing behaviour of H3PO2 is due to:
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Good reducing nature of H3PO2 is attributed to the presence of:
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus

The total number of compounds having at least one bridging oxo group among the molecules given below is
N2O5, P4O6, P4O8, H4P2O5, H5P3O10, H2S2O3, H2S2O5

MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Among the oxides of nitrogen:

N2O3, N2O4 and N2O5; the molecule(s) having nitrogen - nitrogen bond is/are:
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
The product obtained as a result of a reaction of nitrogen with CaC2 is:
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Among the following compounds, the one which does NOT produce nitrogen gas upon heating is
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
The pair that contains two P-H bonds in each of the oxoacids is:
HARD
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
When copper is heated with conc. HNO3 it produces:
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Identify the correct statement from the statements given below.
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
The most stable Lewis acid-base adduct among the following is
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Which of the following reactions cannot liberate phosphine?
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Consider the following statements concerning N2H4:

(i) It is an exothermic compound.

(ii) It burns in air with the evolution of heat.

(iii) It has kinetic stability.

(iv) It reduces Fe3+ to Fe2+ in acidic medium.

Which of the following combinations is correct?
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Which of the following compounds has a P-P Bond?
HARD
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Consider the following compounds:

1. NH42Cr2O7

2. NH4NO2

3. NH4VO3

4. NH4NO3

Which compound(s) yield(s) nitrogen gas upon heating?
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
The compound that does not produce nitrogen gas by thermal decomposition is:
HARD
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
The number of P-OH bonds and the oxidation state of phosphorus atom in pyrophosphoric acid H4P2O7, respectively are:
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Iodine reacts with concentrated HNO3 to yield Y along with other products. The oxidation state of iodine in Y , is:
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Which of the following reactions DOES NOT produce PH3
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Compounds of Phosphorus
Phosphine is generally prepared in the laboratory by