DATE NAME 10. Which is NOT true about carbonyl compounds? a. The c o bond consis
ID: 483287 • Letter: D
Question
DATE NAME 10. Which is NOT true about carbonyl compounds? a. The c o bond consists of 2 electrons in a sigma bond and 1 electron in a pi bond. b. The carbonyl carbon atom is sp2 hybridized. c. The carbonyl group is trigonal planar. d. The oxygen atom is highly polarized and bears a substantial negative charge while the carbonyl carbon bears a substantial positive charge. 11 The common name of the ether below is CH3CH2OCH2CH3 a. dipropylether b. butyl ethylether c. diethylether d. ethylpropylether 12. The IUPAC systematic name of the compound below is CH3CH2CH CHCH2OH a. en-1-ol b, 2-penten-1-ol c. 2-hexen-1-ol d. 2-buten-1-ol 13. CHa CCHs CHBrCBryCH3 The reagent required for the reaction above is a. 2 moles of Br2 b. 2 moles of HBr c, 1 mole of Brz d. 1 mole of NaBr 14. Grignard reagents react with ketones and ester to form a. ethers b. alcohols c. aldehydes d. carboxylic acids 15. Grignard reagents cannot be prepared from any organic halide that contains a carbonyl, epoxy, nitro, or cyano (-CN) group. a. True b. FalseExplanation / Answer
10 ) it contains 2 electrons on pi bond ans 2 in sigma bond. So (a) is incorrect
11) 2 ethyl groups are present on either side of Oxygen.So it is diethylether(c)
12) 5 carbons with double bond at 2 carbon and Oh at 1 st carbon.So, 2-penten-1-ol
13) In this addition reaction, 2 moles of Br2 are added.So,option (a)
14) alcohols option(b) are fomed when grignard reagent react with ketone/esters
15) True, we cannot prepare as it is a powerful base.
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