JEE Chemistry Online Test Aldehydes Ketones And Carboxylic Acids Set G

Refer to JEE Chemistry Online Test Aldehydes Ketones And Carboxylic Acids Set G below. Students of JEE Chemistry can do the below online test and refer to the full list of free JEE Chemistry Mock Online Test provided below. These online Mock tests for Chemistry in JEE have been designed based on the pattern of questions expected to come in the upcoming JEE examinations and the latest syllabus issued by JEE (Main), NCERT and KVS. We have also provided MCQ Questions for JEE Chemistry with answers for all topics.

Online Mock Test for JEE Chemistry Aldehydes Ketones And Carboxylic Acids

In the Mock test for Chemistry Aldehydes Ketones And Carboxylic Acids you can see the list of questions below with options out of which you have to select one correct answer and after completing the test you can check your answers and score. This mock test will help JEE students to check understanding of all topics in Aldehydes Ketones And Carboxylic Acids.

Aldehydes Ketones And Carboxylic Acids Chemistry JEE Mock Test

1. Assertion : Compounds containing –CHO group are easily oxidised to corresponding carboxylic acids.
Reason : Carboxylic acids can be reduced to alcohols by treatment with LiAlH4.

2. Assertion : Formaldehyde is a planar molecule.
Reason : It contains sp2 hybridised carbon atom

3. Assertion : The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses.
Reason : There is a weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions

4. Match the columns

5.

6.

7.

8.

9.

10.

11. Which of the following statement(s) is/are true regarding esterification of a carboxylic acid with an alcohol ? (i) It is carried out in presence of a strong acid which acts as a catalyst.
(ii) The strong acid makes the carbonyl carbon more electrophilic, and hence causes the alcohol, a strong nucleophile to attack on the carbonyl carbon.
(iii) The strong acid makes the carbonyl group more electrophilic which is thus attacked easily by an alcohol, a weak nucleophile.
(iv) Esterification can be done even in absence of a strong acid.

12.

13. Aldehydes are generally more reactive than ketones in
nucleophilic addition reactions. Which of the following statements accounts for this ?
(i) Sterically, the presence of two relatively large substituents in ketones hinders the approach of nucleophile to carbonyl carbon
(ii) Aldehydes show resonance whereas ketones do not
(iii) Electronically, the presence of two alkyl groups reduce the electrophilicity of the carbonyl carbon more effectively.
(iv) Electronically carbonyl carbon atom in ketones is more electrophilic than in aldehydes

14. Read the following statements and choose the correct option
(i) The boiling points of aldehydes and ketones are lower than those of alcohols of similar molecular masses
(ii) Alcohols show intermolecular hydrogen bonding whereas aldehydes and ketones do not show intermolecular hydrogen bonding.
(iii) The lower members of aldehydes and ketones are miscible with water in all proportions, because they form hydrogen bond with water.
(iv) The solubility of aldehydes and ketones increases rapidly on increasing the length of alkyl chain

15. Which of the following statements are false?
(i) No aldehyde can be prepared by the oxidation of primary alcohol with acidic KMnO4.
(ii) Aldehydes having a boiling point less than 100°C can be prepared by the oxidation of primary alcohol with acidic dichromate.
(iii) Secondary alcohols on oxidation with PCC in dichloromethane give carboxylic acids having lesser number of carbon atoms
(iv) Tertiary alcohols can't be oxidised at all

16. Which of the following statement(s) is/are true regarding preparation of aldehydes and ketones?
(i) Both can be prepared by the oxidation of the concerned alcohol with copper at about 250ºC.
(ii) Both can be prepared by the oxidation of the concerned alcohol by Oppenauer oxidation.
(iii) Both can be prepared by the oxidation of respective alcohol with acidic dichromate.

17. Read the following statements and choose the correct option
(i) The carbonyl carbon atom is sp2 -hybridised
(ii) The carbonyl carbon is an electrophilic (Lewis acid) centre
(iii) The carbonyl oxygen is a nucleophilic (Lewis base) centre
(iv) Carbonyl compounds are non- polar in nature.

18.

19. Among the following the strongest acid is

20. Which of the following is the correct decreasing order of acidic strength of (i) Methanoic acid (ii) Ethanoic acid
(iii) Propanoic acid (iv) Butanoic acid

JEE (Main) Chemistry Mock online test JEE Aldehydes Ketones And Carboxylic Acids

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Follow these simple steps to attempt the test:
a. The JEE Chemistry Online Test Aldehydes Ketones And Carboxylic Acids Set G has 15-20 questions for JEE students as per JEE (Main) JEE Chemistry Sample Papers pattern.
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