Pb 3 O 4 + 4 HNO 3 → 2 Pb NO 3 2 + PbO 2 + 2 H 2 O Which is TRUE about the lead ions in Pb 3 O 4 ?

Pb + 2 reacts with HNO 3 to give lead nitrate

Pb + 4 reacts with HNO 3 to give lead nitrate

Pb + 2 reacts with HNO 3 to give PbO 2

Pb + 4 reacts with HNO 3 to give PbO 2

Different chemical and physical properties.

Same physical but different chemical properties.

exhibit oxidation state of + 2 and + 4 .

exhibit oxidation state of + 4 only.

HARD

Earn 100

Why melting points of group $14$ elements are higher than the group $13$ elements ?

Important Questions on The p-Block Elements

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Group 14 Elements: The Carbon Family

{Pb}_{3} O_{4} + 4 {HNO}_{3} \to 2 Pb {({NO}_{3})}_{2} + {PbO}_{2} + 2 H_{2} O

Which is TRUE about the lead ions in

{Pb}_{3} O_{4}

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Group 14 Elements: The Carbon Family

The correct order of bond enthalpy (

kJ {mol}^{- 1}

) is:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Group 14 Elements: The Carbon Family

Identify the incorrect statement from the following

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Group 14 Elements: The Carbon Family

What is the hybridization of carbon atoms in fullerene?

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Group 14 Elements: The Carbon Family

Which of the following statements are correct?
a) The isotope of carbon containing

7

neutrons has natural abundance of

1.1 %

b) Among the IV A group elements, Sn has the lowest melting point
c) Silicon is the

2^{nd}

(by mass) most abundant element in the earth's crust
d) Elemental carbon shows the highest electrical resistivity among the

14

group elements

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Group 14 Elements: The Carbon Family

Compound

A

used as a strong oxidizing agent is amphoteric in nature. It is the part of lead storage batteries. Compound

A

is:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Group 14 Elements: The Carbon Family

Identify the correct statements from the following.

i) Quartz is a piezoelectric material
ii) All group $14$ tetrachlorides except ${CCl}_{4}$ are easily hydrolyzed in water.
iii) The $C - C$ bond distance within the layer of graphite is $154 pm$ .
iv) ${SiO}_{2}$ is soluble in aqueous $HCl$ solution.