MEDIUM
Earn 100

Write the chemical name of N2O5?

50% studentsanswered this correctly

Important Questions on The p-Block Elements

MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
α- chlorosodium acetate on boiling with aqueous sodium nitrite gives
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction 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>General Introduction of Group 15 Elements
AlF3 is soluble in HF only in presence of KF. It is due to the formation of
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Phosphorus pentoxide P2O5 is the starting material for phosphate esters used as surfactants and extraction agents. P2O5 is extensively used as
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Iodine reacts with concentrated HNO3 to yield Y along with other products. The oxidation state of iodine in Y , is:
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Identify the correct statements
I) Germanium exists only in traces.
II) The order of electronegativity of Si, Ge, Sn is Sn>Ge>Si
III) All group 14 elements are available in solid state
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
In H3PO2 and H3PO3, the numbers of P-H bonds are, respectively,
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Identify the incorrect statements from the following
I. Tin in +2 state acts as reducing agent while lead in +4 state acts as strong oxidising agent.
II. Silicon exists as both SiF62- and SiCl62- forms.
III. The hybridisation of carbon in fullerene is sp3.
IV. Among Ge, Sn and Pb lowest melting point is for Sn.
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Good reducing nature of H3PO2 is attributed to the presence of:
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Good reducing nature of H 3 P O 2 is attributed to the presence of:
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
The reaction of P4 with X leads selectively to P4O6. The X is
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Which of the following trihalides of nitrogen is the least basic?
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
In silicon dioxide
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Which of the following structure of PCl3Br2 is/are most stable?
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Out of the following the correct statement(s) is/are
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
General formula of aluminium alums is :
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
When Diborane B2H6 reacts with O2 and H2O independently, then products formed are:
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements

Heating an aqueous solution of aluminium chloride to dryness will give

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Two moles of acetic acid are heated with P2O5. The product formed is
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>General Introduction of Group 15 Elements
Which of the following do not have B—B bond ?