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Class 10 Science
Carbon And Its Compounds
Quiz 2
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Identify the unsaturated compounds from the following:
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(i) and (ii)
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(ii) and (iv)
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(iii) and (iv)
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(ii) and (iii)
Explanation
(ii) and (iii)
Which of the following are correct structural isomers of butane?
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(i) and (iii)
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(ii) and (iv)
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(i) and (ii)
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(iii) and (iv)
Explanation
(i) and (ii)
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e. g. , hydrogen. After the formation of four bonds, carbon attains the electronic configuration of
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helium
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neon
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argon
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krypton
Explanation
neon
Which of the following statements are usually correct for carbon compounds? These
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(i) and (iii)
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(ii) and (iii)
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(i) and (iv)
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(ii) and (iv)
Explanation
(ii) and (iv)
How many electrons are there in the outermost orbit of carbon?
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Two
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Three
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One
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Four
Explanation
Four
Which of these is true for most of the organic compounds?
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High melting and boiling points
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Low melting point but high boiling point
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High melting point but low boiling point
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Low melting and boiling points
Explanation
Low melting point but high boiling point
Hydrocarbons are mainly composed of which of these?
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Hydrogen, carbon and nitrogen
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Hydrogen and carbon
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Hydrogen
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Hydrogen, oxygen and carbon
Explanation
Hydrogen and carbon
How many double bonds are there in a saturated hydrocarbon?
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One
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Two
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Three
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Zero
Explanation
Zero
Successive members of a homologous series vary by how many atomic mass unit?
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Sixteen
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Fourteen
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One
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Twelve
Explanation
Fourteen
Ethanol is also known as which of these?
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Formic acid
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Ethyl alcohol
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Ethane
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Acetaldehyde
Explanation
Ethyl alcohol
Ethanoic acid is also known as which of these?
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Citric acid
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Nitric acid
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Acetic acid
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Formic acid
Explanation
Acetic acid
Soaps are ester of which type of acids?
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Formic acid
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Fatty acid
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Inorganic acid
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Acetic acid
Explanation
Fatty acid
Which of these is not an organic acid?
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Acetic acid
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Tartaric acid
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Nitric acid
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Formic acid
Explanation
Nitric acid
Which of the following is not an allotropic form of carbon?
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Fluorine
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Fullerene
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Diamond
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Graphite
Explanation
Fluorine
In the above given reaction, alkaline KMnO4 acts as
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reducing agent
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oxidising agent
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catalyst
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dehydrating agent
Explanation
oxidising agent
Ethane, with the molecular formula \(\text{C}_2\text{H}_6\) has
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9 covalent bonds
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7 covalent bonds
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6 covalent bonds
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8 covalent bonds
Benzene with molecular formula, \(\text{C}_6\text{H}_6\) has
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18 single bonds only
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6 single bonds and 6 double bonds
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12 double bonds only
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12 single bonds and 3 double bonds
Detergents are sodium or potassium salts of long-chain
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sulphonic acids
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ketones
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carboxylic acid
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aldehydes
Butanone is a four-carbon compound with the functional group
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alcohol
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ketone
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aldehyde
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carboxylic acid
Which of the following represents the correct order of unsaturation?
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Alkanes, alkenes, alkynes
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Alkanes, alkynes, alkenes
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Alkenes, alkynes, alkanes
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Alkynes, alkenes, alkanes
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