An aqueous solution of borax is________.

The element that does not show catenation among the following p-block elements is ________.

Oxidation state of carbon in its hydrides _______.

The geometry at which carbon atom in diamond are bonded to each other is _______.

The stability of +1 oxidation state increases in the sequence ________.

Chemical formula of phosgene is_______.

Write a short note on anamolous properties of the first element of p-block.

Give the uses of Borax

What is catenation ? describe briefly the catenation property of carbon.

Give the structure of CO and CO₂.

Draw the structure of borazole B₃N₃H₆.

Give the uses of alum.

Give the uses of silicones.

Describe the structure of diborane.

Write a note on metallic nature of p-block elements.

Complete the following reactions.
a. \(B(OH)_3 + NH_3\longrightarrow \)
b. \(Na_{ 2 }B_{ 4 }{ O }_{ 7 }+{ { H }_{ 2 }{ SO }_{ 4 }+{ 5H }_{ 2 }O\longrightarrow }\)
c. \({ B }_{ 2 }{ H }_{ 6 }+2NaOH+2{ H }_{ 2 }O\longrightarrow \)
d. \({ B }_{ 2 }{ H }_{ 6 }+6{ CH }_{ 3 }OH\longrightarrow \)
e. \(4{ BF }_{ 3 }+3{ H }_{ 2 }O\longrightarrow \)
f. \(HCOOH+{ H }_{ 2 }{ SO }_{ 4 }\longrightarrow \)
g. \(2SiCl_{ 4 }+NH\)₃
h. SiCl₄ + 4C₂H₅OH \(\rightarrow\)
i. 2\(B+6NaOH\longrightarrow \)
j. \({ H }_{ 2 }{ B }_{ 4 }{ O }_{ 7 }\overset { Red\ hot }{ \rightarrow } \)

How will you convert boric acid to boron nitride?

A hydride of 2nd period alkali metal (A) on reaction with compound of Boron (B) to give a reducing agent (C). Identify A, B and C.

CO is a reducing agent. Justify with an example.