Saturated and Unsaturated Hydrocarbon

Q.

How do we write the IUPAC names of compounds?

Q.

Why do alkanes not react with potassium permanganate?

Q. What are the main sources of alkanes and why they are known as saturated hydrocarbons?

Q.

A sample of ethane (${\mathrm{C}}_2{\mathrm{H}}_6$) gas has the same mass as $1.5\times {10}^{20}$ molecules of methane (${\mathrm{CH}}_4$). How many ${\mathrm{C}}_2{\mathrm{H}}_6$molecules does the sample of gas contain?

Q.

How to draw Lewis dot structure of ${{\mathrm{SO}}_4}^{2-}$ and ${{\mathrm{NO}}_2}^{-}$?

Q.

The volume of CO₂ liberated at STP on burning 24 g of carbon in excess oxygen is_____

1. 22.4 L

2. 44.8 L

3. 16.8 L

4. 67.2 L

Q.

Methane exists as ___ at room temperature.

1. Solid

2. Liquid

3. Gas

4. Both solid and liquid

Q. Which of the following are unsaturated hydrocarbons?

1. Propane
2. Butene
3. Propyne
4. Ethane

Q.

Why are alkanes called saturated hydrocarbons?

Q.

Write the steps to prepare $\mathrm{Hydrogen}$ by Boschs process.

Q.

Why can not a Nucleophilic attack an alkene?

Q. Give three points to differentiate between saturated and unsaturated hydrocarbons.

Q. Give the name and structural formula of:
(i) a saturated hydrocarbon
(ii) an unsaturated hydrocarbon with a double bond.

Q.

Write the formulae for the following.
Iron(II) sulphide

Q. Define chain isomerism along with an example.

Q. WHY THE FIRST THREE MEMBERS OF THE ALKANE GROUP CANNOT FORM ISOMERS?
PLEASE PROVIDE EXPLANATION!

Q. Why can't we have isomers of first two members of alkane series?

Q. What is homologous series? Explain in detail.

Q. A vegetable oil contains two double bonds in its molecule how many moles of hydrogen gas are required for complete hydrogenation of one mole of oil ?
please explain the reason...😊

Q. Which amongst the following is an unsaturated hydrocarbon?

1. Pentane
2. Butane
3. Ethyne
4. Ethane

Q. what are siloxanes? How are they differ from silicones?

Q.

An alkene 'X' of the formula $C_4{H}_8$ on ozonolysis produced acetone and formaldehyde. The product obtained when 'X' reacts with HBr is

1. n - butyl bromide

2. isobutyl bromide

3. sec. butyl bromide

4. tert. butyl bromide

Q. Fill in the blanks : [5 MARKS]
(i) Members of the alkene series containing ....... to ....... number of carbon atoms are liquids.
(ii) Among isomers, the one with more branched chain has a ...... boiling point.
(iii) The term ....... is used when one carbon atom is attached to four other carbon atoms.
(iv) The molecular mass of any two homologues differs by ....... amu.
(v) The melting point of alkanes increases with ....... in molecular weight.

Q.

Why we cannot draw structural isomers for first 3 members of alkane series justify

Q.

What is the general formula for alkynes?

Q.

Name a few carbon compounds.

Q. $10$mL of a gaseous hydrocarbon was burnt completely in $80$mL of $O_2$ at NTP. The remaining gas occupied $70$mL at NTP. This volume became $50$mL on treatment with KOH solution. What is the formula of the hydrocarbon?

Q. Write down (i) structural formula, and (ii) electron - dot formula of any one isomer of hexane $C_6{H}_{14}$ other then n-hexane.

Q. How many primary, secondary and tertiary hydrogen atoms are present in isobutane?

Q. Fill in the blanks with appropriate words from the bracket: Covalent compounds are formed by sharing electrons pairs between non-metallic atoms. Non-metallic atoms having ____ valence electrons [4, 5, 6, 7] share one, two or three pairs of electrons respectively.