Carbon and its Compounds
In the presence of concentrated sulphuric acid, acetic acid react with ethyl alcohol to produce
(1) aldehyde
(2) alcohol
(3) ester
(4) carboxylic acid
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Carbon and its Compounds
The gaseous hydrocarbon acetylene, C2H2 used in welder's torches, releases 1300 kJ. When 1 mole of C2H2 undergoes combustion, then which of the following is not TRUE ?
(1) Combustion of acetylene is an exothermic reaction
(2) The balanced chemical reaction of combustion of acetylene is : C2H2 + 5O2 - > 2CO2 + H2O
(3) 2 moles of water produced when 2 moles of acet ylene react s.
(4) 44 g of CO2 produced when 13 g of acetylene reacts.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Carbon and its Compounds
The action of cleaning of oily dirt by soap is based on .......
(1) solubility in water
(2) hydrophilic property
(3) hydrophobic property
(4) presence of both hydrophilic and hydrophobic groups
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Carbon and its Compounds
An organic compound butanal has functional group
(1) Aldehyde
(2) Ketone
(3) Alcohol
(4) Amine
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Carbon and its Compounds
Which of the following substance is used for unsaturation test of hydrocarbons
(1) Br2 solution
(2) Baeyer's reagent
(3) Ethylene glycol
(4) A and B both
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Carbon and its Compounds
An organic compound 'A' on treating with acidified potassium dichromate solution gives 'B' with molecular mass 60 gm/mol. 'A' on heating with conc. H2SO4 of 443 K produces a gas that decolourless bromine water. The compound A is
(1) n-propyl alcohol
(2) iso-propyl alcohol
(3) ethyl alcohol
(4) acetaldehyde
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Carbon and its Compounds
Which of the following organic molecules does not have carbon-carbon double bond
(1) C3H4O
(2) C3H4O2
(3) C3H8O
(4) C6H6O
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Carbon and its Compounds
A strip of copper is placed in four different colourless salt solution. The salt solutions are NaNO3, Zn(NO3)2 , Mg(NO3)2, , AgNO3 Which one of the solution will finally turn blue
(1) AgNO3
(2) Zn(NO3)2
(3) Mg(NO3)2
(4) NaNO3
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Carbon and its Compounds
Chemical formula of Teflon is-
(1) (-CF2-CF2-)n
(2) 
(3) (-CH2-CH2-)n
(4) None
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
