MCQ Question of Science class 10 chapter 4 Carbon and it's compounds with Answers part 3
Here we have given the mcq of class 10 science chapter 4 Carbon and it's compounds According the latest pattern of CBSE.These questions are prepared according to the Term 2 examination of 2022 of CBSE.
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Carbon and its compounds class 10 mcq with answers
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Multiple Choice Questions Of Carbon and it's compounds class 10
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Question:29.
Members of homologous series differ by
(1)-CH₂
(2)-CH4
(3)-CH₂
(4) C₂H5
Answer:(1)-CH₂
Question:30.
Which of the following does not belong to the samehomologous series?
(1) CH4
(2) C₂H6
(3) C3H8
(4) C4H8
Answer:(4) C4H8
Question:31.
The first member of alkane homologous series is
(1) ethyne
(2) ethene
(3) propyne
(4) methane
Answer:(4) methane
Question:32.
The correct structural formula of propanoic acid is
Answer: (2)
Question:33.
The name of the compound CH3-CH₂-CHO is
(1) propanal
(2) propanone
(3) ethanol
(4) ethanal
Answer:(1) propanal
Question:34.
Ethanol on combustion gives
(1) CO₂ and water
(2) acetaldehyde
(3) acetic acid
(4) acetone
Answer:(1) CO₂ and water
Question:35.
Dilute alkaline KMnO4 solution is
(1) an oxidising agent
(2) a reducing agent
(3) a bleaching agent
(4) a drying agent
Answer: (1) an oxidising agent
Question:36.
Which of the following type of reaction occurs when a hydrocarbon has a double bond?
(1) substitution reaction
(2) Addition reaction
(3) Photolysis
(4) Non of these
Answer:(2) Addition reaction
Question:37.
Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of
(1) addition reaction
(2) substitution reaction
(3) displacement reaction
(4) oxidation reaction
Answer:(1) addition reaction
Question:38.
Chlorine reacts with saturated hydrocarbons at room temperature in the
(1) absence of sunlight.
(2)presence of sunlight.
(3) presence of water.
(4) presence of hydrochloric acid.
Answer:(2)presence of sunlight.
Question:39.
The reaction
2C₂H5OH + 2Na →2C₂H₂ONa+ H₂ suggests that ethanol is
(1) acidic in nature.
(2) basic in nature.
(3) amphoteric.
(4) neutral.
Answer:(1) acidic in nature
Question:40.
Which of the following substance is added to denatured ethanol?
(1)Methanal
(2) Benzene
(3) Water
(4) Poison
Answer:(1)Methanal
Question:41.
Carboxylic acids are obtained from alcohols by
(1) oxidation
(2) reduction
(3) hydrolysis
(4) pyrolysis
Answer:(1) oxidation
Question:42.
Ethanol reacts with sodium and forms two products. These are
(1) sodium ethanoate and hydrogen
(2) sodium ethanoate and oxygen
(3) sodium ethoxide and hydrogen
(4) sodium ethoxide and oxygen
Answer:(3) sodium ethoxide and hydrogen
Question:43.
Which out of the following has smell similar to that of vinegar?
(1) Methanol
(2) Ethanol
(3) Ethanoic acid
(4) Formic acid
Answer:(3) Ethanoic acid
Question:44.
Vinegar is a
(1) 5-8% solution of acetic acid in water.
(2) 25-30% solution of acetic acid in water.
(3) 40-45% solution of acetic acid in water.
(4) 45-50% solution of acetic acid in water
Answer:(1) 5-8% solution of acetic acid in water
Question:45.
Which of the following will give a pleasant smell of ester when heated with ethanol and a small quantity of concentrated sulphuric acid?
(1) CH₂COOH
(2) CH3CH₂OH
(3) CH₂OH
(4) CH3CHO
Answer:(1) CH₂COOH
Question:46.
In the soap micelles
(1) the ionic end of soap on the surface of the cluster while the cartion chain is in the interior of the cluster
(2) the ionic and of soap is in the interior of the cater and the carbon chans out of the cluster
(3)both ionic end and carbon chain are in the interior of the cluster
(4)both ionic end and carbon chain are in the exterior of the cluster
Answer:(1) the ionic end of soap on the surface of the cluster while the cartion chain is in the interior of the cluster
Question:47.
An example of soap is
(1) CH3COONa
(2) CH3ONa
(3)C17H35COONa
(4) C17H35COOC2H5
Answer:(3)C17H35COONa
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