Lead Dioxide and Lead Tetraoxide

Q.

What happens when quick lime is heated with silica

Q.

Which of the following is the correct statement for red lead

1. It is an active form of lead

2. Its molecular formula is $P{b}_2{O}_3$

3. It decomposes into Pb and $C{O}_2$

4. It decomposes into PbO and $O_2$

Q.

$(C{H}_{3}COO{)}_{2}Pb+Ca(OH{)}_2\to A+(C{H}_{3}COO{)}_{2}Ca$

$A+CaOC{l}_2\to B+CaC{l}_2+H_{2}O$

Identify A and B.

1. $PbO$

2. $P{b}_{2}O$

3. $Pb(OH{)}_2$

4. $Pb{O}_2$

Q.

Match List I with List II and select the correct answer using the codes given below the lists

1. A B C D

   4 3 2 1

2. A B C D

   3 2 1 4

3. A B C D

   4 2 3 1

4. A B C D

   4 1 2 3

Q. When $Pb{O}_2$ reacts with conc $HN{O}_3$, the gas evolved is:

1. $N{O}_2$
2. $O_2$
3. $N_2$
4. $N_{2}O$

Q.

Lead (IV) Oxide is:

1. a good oxidizing agent

2. used in lead-acid batteries

3. is amphoteric

4. all of the above

Q.

Match List I with List II and select the correct answer using the codes given below the lists

1. A B C D

   4 3 2 1

2. A B C D

   3 2 1 4

3. A B C D

   4 2 3 1

4. A B C D

   4 1 2 3