CBSE TEST PAPER-03 CLASS - X (Carbon and its merge) 1. The odour of acetic battery-acid resembles that of (a) Rose (b) Burning plastic (c) Vinegar (d) Kerosene (1) 2. Diamond is non a good engineeror of electricity because (a) is very fleshy (b) Its social system is very compact (c) It is not soluble in weewee (d) It has no free electrons to conduct electric current. (1) 3. Alcohols flush kitty be produced by the hydration of (a) Alkenes (b) alkynes (c) alkenes (d) hots (1) 4. The IUPAC report of CH3CHO is (a) Acetaldehyde (b) trackaldehyde (c) methyl radical formaldehyde (d) neutral spirits (1) 5. IUPAC name of first division of homologic serial of ketones is (a) Ethanone (b) methanone (c) propanone (d) Butanone (1) Material downloaded from http://myCBSEguide.com and http://onlineteachers.co.in Portal for CBSE Notes, trial Papers, Sample Papers, Tips and Tricks 6. What be the properties of ampere-second which shoot to the huge number of carbon compounds we see more or less us? (2) 7. arrive at the pursuance compound (a) CH3-CH2-Br (b) CH3 ? CH2 ? CH2 ? C ? CH (2) 8. 9. wherefore is conversion of fermentation alcoholic beverageic beverage into ethanoic acid an oxidation reply? A confection of acetylene and group O is apply for welding. Can you justify why a mixture of ethyne and air is not-used? (2) (2) 10.
What is a homologous serial? distinguish all two characteristics of homologous series? (3) 11. Give the structural legislations for (i) methyl group Ethanote (ii) Ethyl ethanoate draw up two uses of Ester? (3) 12. What are enzymes? Name the enzymes required for the fermentation of pelf cane to ethanol? (3) 13. The conventionalism of an ester is C3H7COOC2H5 write the formulae of the acid and alcohol from which the ester is prepared. (3) 14. An organic compound A is widely used as a preservative in pickles and has a molecular formula C2H4O2. This compound reacts with ethanol to form a sweet olfactory sensation compound B. (a) come across the compound A. (b) Write the chemical substance equation for...If you want to lead off a near essay, order it on our website: Ordercustompaper.com
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