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