NCERT Solutions Class 10 Science Chapter 4 Carbon And Its Compounds Download In Pdf
Question 1. What would be the electron dot structure of carbon dioxide which has the formula CO2?
Question 2. What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – The eight atoms of sulphur are joined together in the form of a ring.)
Question 1. How many structural isomers can you draw for pentane?
Question 2. What are the two properties of carbon which lead to the huge number of carbon compounds we see around us?
Question 3. What will be the formula and electron dot structure of cyclopentane?
Question 1. Halogen Prefix-chloro, Chloropropane Bromopropane
Question 2. Alcohol Suffix - ol Propanol
Question 3. Aldehyde Suffix - al Propanal
Question 1. Why is the conversion of ethanol to ethanoic acid an oxidation reaction?
Question 2. A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used?
Question 1. How would you distinguish experimentally between an alcohol and a carboxylic acid?
Question 2. What are oxidising agents?
Question 1. Would you be able to check if water is hard by using a detergent?
Question 2. People use a variety of methods to wash clothes. Usually after adding the soap, they ‘beat’ the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes?
Question 1. Ethane, with the molecular formula C2H6 has
(a) 6 covalent bonds.
(b) 7 covalent bonds.
(c) 8 covalent bonds.
(d) 9 covalent bonds.
Question 2. Butanone is a four-carbon compound with the functional group
(a) carboxylic acid.
Question 3. While cooking, if the bottom of the vessel is getting blackened on the outside, it means that
(a) the food is not cooked completely.
(b) the fuel is not burning completely.
(c) the fuel is wet.
(d) the fuel is burning completely.
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