MEDIUM
Earn 100

Which statement regarding P4O10 is incorrect?

50% studentsanswered this correctly

Important Questions on The p-Block Elements

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
Good reducing nature of H3PO2 is attributed to the presence of:
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
The product obtained as a result of a reaction of nitrogen with CaC2 is:
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
The most stable Lewis acid-base adduct among the following is
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
Iodine reacts with concentrated HNO3 to yield Y along with other products. The oxidation state of iodine in Y , is:
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
Strong reducing behaviour of H3PO2 is due to:
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
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>The p-Block Elements>Important Compounds of Group 15 Elements
Among the oxides of nitrogen:

N2O3, N2O4 and N2O5; the molecule(s) having nitrogen - nitrogen bond is/are:
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
The pair in which phosphorous atoms have a formal oxidation state of + 3 is:
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements

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

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
When copper is heated with conc. HNO3 it produces:
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
The pair that contains two P-H bonds in each of the oxoacids is:
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
The number of P-OH bonds and the oxidation state of phosphorus atom in pyrophosphoric acid H4P2O7, respectively are:
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
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>The p-Block Elements>Important Compounds of Group 15 Elements
The compound that does not produce nitrogen gas by thermal decomposition is:
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
The product formed in the reaction of SOCl2 with white phosphorous is
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
The reaction of zinc with dilute and concentrated nitric acid, respectively, produces:
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
Among the following compounds, the one which does NOT produce nitrogen gas upon heating is
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
Which of the following compounds has a P-P Bond?
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 15 Elements
Identify the correct statement from the statements given below.