CBSE 10th Standard Science Subject Carbon and Its Compounds HOT Questions 2 Mark Questions 2021
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CBSE 10th Standard Science Subject Carbon and Its Compounds HOT Questions 2 Mark Questions 2021
10th Standard CBSE
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Reg.No. :
Science
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Which of the following compounds contain a carboxyl group?
CH3OH, CH3COOH, CH3CHO, CH3COCH3(a) -
An organic compound 'A' which is used as antifreeze has the molecular formula C2H6O. On addition, it gives a compound 'B' which baking soda solution. Identify the compound A and B.
(a) -
An organic compound 'X' is a constituent of wine and beer. The compound X on heating with potassium dichromate forms another organic compound 'Y'. Identify the compound X and Y.
(a) -
How will you convert ethanol to ethene?
(a) -
A, B, C are members of homologous series and their melting points are -183°C, -138°C, 130°C respectively. Among these
(i) Which member will have least number of carbon atoms?
(ii) Which member will have maximum number of carbon atoms?(a)
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CBSE 10th Standard Science Subject Carbon and Its Compounds HOT Questions 2 Mark Questions 2021 Answer Keys
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CH3COOH
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Compound A is ethanol and compound B is ethanoic acid.
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Compound X is ethanol and Compound Y is acetic acid or ethanoic acid.
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\(CH_3- \underset { Ethene }{CH_2 }-OH \xrightarrow [ ]{ Conc.H_2SO_4/433-443K } \underset { Ethene }{CH_2= CH_2 }+H_2O \)
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(i) A will have least number of carbon atoms.
(ii) C will have maximum number of carbon atoms.
