Catenation

Q. Silicon is also tetravalent. But why can’t it form long chain compounds like carbon?

1. Silicon does not form polymers because of its semiconductor nature
2. Carbon is small in size, so holds the shared electron pair strongly.
3. Silicon compounds are highly reactive
4. Carbon compounds are moderately reactive.

Q. Silicon is tetravalent. But why can’t it form long chain compounds like carbon?

1. Silicon is a metalloid and cannot bond with other atoms.
2. Silicon is larger in size than carbon, and cannot hold the shared electron pair(s) strongly.
3. Silicon is smaller in size than carbon, and cannot hold the shared electron pair(s) strongly.
4. Silicon compounds are unreactive.

Q.

What type of solid is Silicon carbide?

Q.

Catenation is the ability of an atom to form bonds with other atoms of the same element. It is exhibited by both carbon and silicon. Compare the ability of catenation of the two elements. Give reasons.

Q.

How many total valence electrons are available in ion ${{\mathrm{NO}}_3}^{-}$?

Q. Carbon has the unique ability to form bonds with other atoms of carbon, giving rise to large molecules. What is this property of Carbon called?

1. Tetravalency
2. Catenation
3. Allotropy
4. Covalent Bonding

Q. The total number of lone pairs present in a water molecule is:

1. 2

Q.

Give reasons for the following:

Sulphur exhibits negative valency.

Q. The capablity of carbon of forming single bonds with four other carbon atoms or atoms of some other monovalent element, etc.This property is called as

1. Tetravalancy
2. Catenation
3. Covalent Bonding
4. Organic Chemistry

Q. The ability of atoms of an element to combine among themselves to form long chains is called _________.

1. catenation
2. allotropy
3. tetravalency
4. isomerism

Q. In organic chemistry and in iso and neo carbon chain iso and neo carbon chain are possible up to Iso(3-6) Neo(5-7)only. Why?

Q. Distinguish between Diamond and Graphite.

Q.

Why are some of these called Saturated and other Unsaturated compounds?

Q.

Why does Carbon show a high tendency towards catenation?

Q. Match the following:
$\begin{array}{cc}\text{(a)Tetravalency}& \left(i\right)Atomsofthesameelementlinkstoformlongchaincompounds.\\ \text{(b)Saturated hydrocarbons}& \left(ii\right)AlkenesandAlkynes\\ \text{(c)Catenation}& \left(iii\right)Alkanes\\ \text{(d)Unsaturated hydrocarbons}& \left(iv\right)Abilityofcarbontobondwithcarbonor4othermonovalentatomsortwootherdivalentatoms\end{array}$

1. (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
2. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
3. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
4. (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)

Q.

Draw the Carbon chains describing

1. Saturated
2. Unsaturated

Q.

Sir sometimes while making formulas, if valency are in multiples they get divided so how to know the actual valency of the compunds. What will be the valency of Nitrogen and Oxygen in NO.

Your Sincerely

Abhyodaya Dubey

Q. Which among the following molecules are example(s) of molecule formation using catenation property?

1. $C{H}_2=CH-C{H}_3$
2. $C{H}_3-C{H}_2-C{H}_3$
3. $H-O-H$
4. $O=C=O$

Q. Which amongst the following molecules consist of a triple bond?

1. Hydrogen
2. Fluorine
3. Nitrogen
4. Oxygen

Q. Which carbon is more electronegative among carbon in CH2=CH2and carbon in CH=CH

Q. Carbon has a valency of four. It is capable of bonding with four other atoms of carbon or atoms of some other monovalent element, etc. What is this property of carbon known as?

1. Tetravalency
2. Catenation
3. Ionic Bonding
4. Metallic Bonding

Q. Carbon compounds in which no carbon atom of the chain is linked to more than two other carbon atoms are :

1. straight chain
2. branched chain
3. ring
4. none of above

Q. One atom of the element carbon can join with another carbon atom to form long chains. This makes the chemistry of living matter unique. Which of the following elements has similar potential?

1. Silicon
2. Oxygen
3. Bromine
4. Iron