# NEET Chemistry Organic Chemistry: Some Basic Principles & Techniques Question Bank

### done Question - Assertion and Reason

 Assertion: A mixture of plant pigments can be separated by chromatography. Reason: Chromatography is used for the separation of coloured substances into individual components. Read the assertion and reason carefully to mark the correct option out of the options given below:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: Moving phase is liquid and stationary phase is solid in paper chromatography. Reason: Paper chromatography is used for analysis of polar organic compounds. Read the assertion and reason carefully to mark the correct option out of the options given below:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: During digestion with concentrated ${{H}_{2}}S{{O}_{4}}$, nitrogen of the organic compound is converted into ${{(N{{H}_{4}})}_{2}}S{{O}_{4}}$. Reason: ${{(N{{H}_{4}})}_{2}}S{{O}_{4}}$ on heating with alkali liberates $N{{H}_{3}}$. Read the assertion and reason carefully to mark the correct option out of the options given below:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: Thiophene present in commercial benzene as an impurity can be removed by shaking the mixture with cold concentrated ${{H}_{2}}S{{O}_{4}}$. Reason: Thiophene is a heterocyclic aromatic compound. Read the assertion and reason carefully to mark the correct option out of the options given below:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: is 3-methyl butanoic acid. Reason: In poly functional group, the substituent should be given lower number than the principal functional group. Read the assertion and reason carefully to mark the correct option out of the options given below:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: Refining of petroleum involves fractional distillation. Reason: Fractional distillation involves repeated distillation. Read the assertion and reason carefully to mark the correct option out of the options given below:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: Potassium can be used in lassaigne test. Reason: Potassium reacts vigorously. [AIIMS 1997] Read the assertion and reason carefully to mark the correct option out of the options given below:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: is 3-methyl cyclopentene. Reason: In numbering, double bonded carbon atoms gets preference to the alkyl group in cycloalkenes. Read the assertion and reason carefully to mark the correct option out of the options given below:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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 Assertion: During test for nitrogen with Lassaigne extract on adding solution sometimes a red precipitate is obtained. Reason: Sulphur is also present. [AIIMS 2001] Read the assertion and reason carefully to mark the correct option out of the options given below:

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.

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