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Class 10 Science
Carbon And Its Compounds
Quiz 3
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The acid present in vinegar is
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\( \text{HCOOH} \)
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\( \text{CH}_3\text{CH}_2\text{CH}_2\text{COOH} \)
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\( \text{CH}_3\text{COOH} \)
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\( \text{CH}_3\text{CH}_2\text{COOH} \)
Which of the following is not a saturated hydrocarbon?
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Cyclohexane
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Isobutene
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Butane
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Benzene
While cooking, if the bottom of the vessel is getting blackened on the outside, it means that
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the fuel is not burning completely
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the fuel is burning completely
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the food is not cooked completely
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the fuel is wet
Which of the following substances cannot be used to distinguish ethanol from ethanoic acid?
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\( \text{hot acidified K}_2\text{Cr}_2\text{O}_7\,\,\text{solution} \)
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\( \text{Na metal} \)
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\( \text{NaHCO} \)
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\( \text{hot alkaline KMnO}_4 \)
The general formula of alcohol is
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\( \text{C}_{\text{n}}\text{H}_{\text{2n}1}\text{OH} \)
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\( \text{C}_{\text{n}}\text{H}_{\text{2n}+1}\text{OH} \)
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\( \text{C}_{\text{n}}\text{H}_{\text{2n}+2}\text{OH} \)
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\( \text{C}_{\text{n}}\text{H}_{\text{2n}+4}\text{OH} \)
An example of soap is
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\( \text{C}_{17}\text{H}_{35}\text{COOC}_2\text{H}_5 \)
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\( \text{CH}_3\text{COONa} \)
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\( \text{C}_{17}\text{H}_{35}\text{COONa} \)
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\( \text{CH}_3\text{ONa} \)
Which of the following is not an allotropic form of carbon?
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Graphite
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Coal
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Fullerene
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Diamond
Wine contains
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\( \text{CH}_3\text{COOH} \)
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\( \text{C}_2\text{H}_5\text{OH} \)
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\( \text{CH}_3\text{OH} \)
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\( \text{C}_6\text{H}_5\text{OH} \)
The functional group in methanol and methanol and methanol respectively are:
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\( -\text{CHO, }-\text{COOH} \)
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\( -\text{OH,}-\text{CHO} \)
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\( -\text{CHO, }-\text{OH} \)
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\( -\text{OH, }-\text{COOH } \)
Which of the following salts when dissolved in water produce hard water?
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Calcium sulphate
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Magnesium bicarbonate
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Calcium chloride
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Any of the above
Which of the following compounds does not contain a multiple bond?
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Benzene
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Ethyne
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Ethene
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Ethane
Which of the following substance is added to denature ethanol?
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Poision
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Benzene
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Methanol
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Copper nitrate
The reaction \( 2C_2H_5OH\,\,+\,\,2Na\rightarrow 2C_2H_5ONa\,\,+\,\,H_2 \) suggests that ethanol is
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Neutral
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Amphoteric
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Basic in nature
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Acidic in nature
The graphite is a soft lubricant extremely difficult to melt. The reason for this anomalous behavior is that graphite
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is a non-crystalline substance
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has only single bonds between carbon atoms
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has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interpolate bonds.
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is an allotropic form of carbon
A covalent bond is formed by
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complete transfer of electrons
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one-sided sharing of electron
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mutual sharing of electron
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all of the three above
A dilute solution of ethanoic acid in water is called
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Vinegar
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Tincture of iodine
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Tollen’s reagent
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Fehling’s solution
Which of the following has the shortest 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
Carboxylic acids are obtained from alcohols by
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Pyrolysis
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Reduction
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Oxidation
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Hydrolysis
A carboxylic group is present in
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Formaldehyde
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Methanoic acid
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Ethylene
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Ethanol
The major constituent of biogas is
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Benzene
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Acetylene
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Propane
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Methane
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