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Class 10 Science
Carbon And Its Compounds
Quiz 4
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Which class of organic compounds give effervescence with \(\text{NaHCO}_3\) Solution?
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Aldehydes
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Alcohols
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Esters
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Carboxylic acids
The hydrocarbon with the general formula \(C_nH_{2n+n}\)is an-
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Alkyne
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Alkene
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unsaturated compounds
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Alkane
The functional group present in carboxylic acids is
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\( -\text{COOH} \)
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\( -\text{OH} \)
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\( -\text{CHO} \)
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\( -\text{CO} \)
The major constituent of natural gas is
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Methane
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Butane
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Propane
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Ethane
Which of the following will react with sodium metal?
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Ethanol
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Ethane
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Ethanal
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Ethene
Which of the following will undergo addition reactions
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\( C_2H_4 \)
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\( C_2H_6 \)
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\( C_3H_8 \)
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\( CH_4 \)
Ethanol on oxidation gives
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Ethanoic acid
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Methane
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Ethane
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Formalin
Which of the following has the weakest carbon-carbon bond length?
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\( \text{C}_2\text{H}_2 \)
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\( \text{C}_2\text{H}_4 \)
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\( \text{C}_2\text{H}_6 \)
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All have the same bond length
Which of the following will not decolorize bromine water?
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\( \text{C}_4H_6 \)
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\( \text{C}_3H_8 \)
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\( \text{C}_4H_8 \)
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\( \text{C}_3H_4 \)
Which of the following is an alkyne?
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\( \text{C}_6\text{H}_{10} \)
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\( \text{C}_6\text{H}_6 \)
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\( \text{C}_6\text{H}_{12} \)
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\( \text{C}_6\text{H}_{14} \)
Ethanol on complete oxidation gives
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\(\text{CO}_2\) and water
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Acetone
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Acetaldehyde
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Acetic acid
Compounds made up of carbon and hydrogen only are called
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Hydrocarbons
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Alkanes
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Alkenes
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Alkynes
Soaps are prepared by alkaline hydrolysis of-
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Carboxylic acids
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Lower esters
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Higher esters
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None of these
Open-chain saturated hydrocarbons are called
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Alkenes
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Paraffins
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Alkyl groups
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Alkynes
Which of the following will give a pleasant smell of ester when heated with ethanol and a small quantity of sulphuric acid?
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\( CH_3COOH \)
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\( CH_3CHO \)
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\( CH_2CH_2OH \)
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\( CH_3OH \)
The general formula of cyclic alkanes is
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\( C_nH_{2n-2} \)
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\( C_nH_{2n-1} \)
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\( C_nH_{2n+2} \)
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\( C_nH_{2n} \)
. n-butane and isobutene are
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Alkenes
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Alkynes
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Isomers
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None of these
The characteristic reaction of alkenes is
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Polymerization
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Substitution
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Isomerization
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Addition
Methane is a major constituent of
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Biogas
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Water-gas
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Petroleum
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Coal gas
The functional group in aldehydes is
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\( -COOH \)
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\( -CHO \)
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\( -C=O \)
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\( -COOR \)
0 h : 0 m : 1 s
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