alcohol phenol and ether mcq with answers pdf

Published by on November 13, 2020

Ans : Tertiary Butyl alcohol is highly branched and hence approaches almost spherical shape. Which one of the following is also known as, 3. Further (, ) is less stable than (ii) because -I effect is more pronounced in (, ) due to less distance between F and positive charge. Methyl alcohol does not respond to Iodoform Test. The intend of this article is to present before you the 5 most efficient tips to facilitate the students to revise the entire course for the Annual School and Board Examination. of alkyl halides in which hydrogen is replaced by alkoxy group . If a blood red colour is obtained, the original alcohol is primary. 3 0 obj C)                 Sodium hydroxide and iodine   ( Iodoform Test ). Practice the multiple choice questions to test understanding of important topics in the chapters. In the Victor-Meyer’s test, the colour given by $1^{\circ}, 2^{\circ}$ and $3^{\circ}$ alcohols are respectively :- Chapter 3 Alcohols, Phenols, and Ethers 2 3 Alcohols 4 The Hydroxy (—OH) Functional Group •The hydroxyl group (—OH) is found in the alcohol and phenol functional groups. Free PDF Download of CBSE Chemistry Multiple Choice Questions for Class 12 with Answers Chapter 11 Alcohols, Phenols and Ethers. Merit Determined Category-wise in UET Lahore: The seats for admission to the Bachelor’s Degree courses at the University of Engineerin... Science k krishmay urdu essay for intermediate and metric Students. SHOW SOLUTION As per the new pattern of examination, NEET is increasing the MCQs in various question papers for Alcohol Phenol and Ether for Chemistry. Ans – The C-O-C bond in ether is very strong .The addition of acids shall protonate the oxygen, atom as a result of which the attack by nucleophiles as Br – or I – on the less hindered alkyl, CH3CH2-O-CH3 + H+ → CH3CH2-O-CH3 → CH3Br + CH3CH2OH. Which of the following is not an explosive? α�a�/� @�dY�+� ���lQ�^d����������i�w��ի�����=������7_�|��>������՗����ӿ������?��?~�姿�ⷿ�����ݷ?����~����>���O�:�b��r��7oA����n��s�}�����o��O?��W�~�����w�����_|��/}��������|��o?��'�'���b�t���w�GMc��ri�_����ov]�=?�s��ǥ�/���~��O�:�b��"�x/���$��x��&đ>����O>_�z=�|��1���:�����~���������o�z=��l�������R��:����'�?��~�3���������>���`��g�#t���������2�:뽶�(�>n�����_ܾ��������ڽ�[��>�6��_�6�V�l3���m��^�v�6�)�r�abP�{�m�_qz��Ϸ_��z�B��y��w? Wood Naphtha is the commercial name of, c) Methyl alcohol           d) Acetic acid, 42. Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...Sol. An unknown alcohol is treated with the “Lucas reagent’ to determine whether the alcohol is primary, secondary or tertiary. Which of the following is not a characteristic of alcohol ? 12. Oxidation of [B] and [C] gave a propanone and an ethanoic acid respectively. Download India's Best Exam Preparation App. sec-butyl alcohol; other two given alcohols are. (3) Diethyl ethe Alcohol And Phenol Objective Question 4 / 34. This method can be used for the preparation of symmetrical or unsymmetrical ethers. group more stabilize the phenoxide ion at p-position. JEE Main Previous Year Papers Questions of Chemistry with Solutions are available at eSaral. The original compound showed these properties also: Due to greater electronegativity of sp2-hybridizad carbon atoms of the benzene ring,    di–aryl ethers are not attacked by nucleophiles like I−, A) Phenol + dimethyl sulphate in presence of a base, B) Sodium phenoxide is treated with methyl iodide, D) Reaction of methyl magnesium iodide with phenol, Phenol has active (acidic) hydrogen so it reacts with CH3MgI to give CH4, and not anisole C6H5OH+CH3MgI→CH4+C6H5OMgI. (1) Ethyl-hydrogen sulphate The IUPAC name of the ether [A] is: Allyl phenyl ether can be prepared by heating: Amongst the following alcohols which would react fastest with cone. AIIMS Chemistry Practice Tests Alcohol Phenol Ether. Which one is primary alcohol ? Which one of them is a monohydric alcohol? Save my name, email, and website in this browser for the next time I comment. Lastly, toluene with a +I group possesses little dipole moment. Which one of the following is termed as benzyl 4 0 obj (3) Isopropyl alcohol ... Alcohol is a compound containing one or more hydroxyl groups (-OH) directly attached to an aliphatic carbon atom. 31. Iodoform reactions occur as follows ( for ethyl alcohol) : CH3CHO + 3NaOI → CI3-C-H + 3NaOH → CHI3↓ +   H-C-O-Na, ||                         Iodoform           ||, O                      yellow ppt          O. (2) Ethyl methyl ketone Ans: James Hilton is the writer of the novel. 2 0 obj x��}[�l�q�;��y Phenol on treatment with excess of bromine. The simplest alcohol is methyl alcohol. Ans- a)CH3-CH=CH2 + conc. Helping Engineering students gives me pleasure. <> Cuprous oxide was precipitated. AIEEE-2013 Alcohol reacts with carboxylic acids, acid an hydrides and acid halides to form, a)     Ether                      b) Ketone, b)    Esters                     d) Aldehyde, 45. 82. Phenol has activating (electron releasing)-OH group and bromine water supplies, ion easily, hence under such conditions reaction does not stop at. Answers. Action of nitrous acid on ethylamine gives, a) C2H6                                                    b) C2H5OH. KOH                d) Conc. For your convenience I have added a pdf that you can download. A on reacting with alcoholic KOH gives compound B as the main product. The liquid was :- Jee-Main-2018 a) CH3CH(OH)2                             b) CH3C(OH)3, c) C2H5OH                     d) None of these, c) Trihydric                    d) Both a & b, 41. Enter pincode to get tutors in your city. (2) PCC (Pyridinium chlorochromate) Passing vapors of phenol over heated Zinc gives, a) Benzene                    b) Acetic acid, c) Benzoic acid             d) Benzaldehyde, 54. Write the reactions which would convert ethanol. OH− group is attached with primary, secondary and tertiary alcohols with primary, secondary and tertiary carbon atoms respectively. AIEEE-2009 Practice the multiple choice questions to test understanding of important topics in the chapters.

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