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1
JEE Main 2024 (Online) 9th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Which of the following compound can give positive iodoform test when treated with aqueous $$\mathrm{KOH}$$ solution followed by potassium hypoiodite.

A
JEE Main 2024 (Online) 9th April Evening Shift Chemistry - Practical Organic Chemistry Question 11 English Option 1
B
JEE Main 2024 (Online) 9th April Evening Shift Chemistry - Practical Organic Chemistry Question 11 English Option 2
C
JEE Main 2024 (Online) 9th April Evening Shift Chemistry - Practical Organic Chemistry Question 11 English Option 3
D
$$\mathrm{CH_3CH_2CH_2CHO}$$
2
JEE Main 2024 (Online) 9th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Match List I with List II

LIST I
(Test)		 LIST II
(Observation)
A. $$\mathrm{Br_2}$$ water test I. Yellow orange or orange red precipitate formed
B. Ceric ammonium nitrate test II. Reddish orange colour disappears
C. Ferric chloride test III. Red colour appears
D. 2, 4 - DNP test IV. Blue, Green, Violet or Red colour appear

Choose the correct answer from the options given below:

A
A-II, B-III, C-IV, D-I
B
A-III, B-IV, C-I, D-II
C
A-I, B-II, C-III, D-IV
D
A-IV, B-I, C-II, D-III
3
JEE Main 2024 (Online) 9th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Identify the incorrect statements regarding primary standard of titrimetric analysis.

(A) It should be purely available in dry form.

(B) It should not undergo chemical change in air.

(C) It should be hygroscopic and should react with another chemical instantaneously and stoichiometrically.

(D) It should be readily soluble in water.

(E) $$\mathrm{KMnO}_4$$ & $$\mathrm{NaOH}$$ can be used as primary standard.

Choose the correct answer from the options given below :

A
(C) and (E) only
B
(A) and (B) only
C
(B) and (E) only
D
(C) and (D) only
4
JEE Main 2024 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Match List I with List II

LIST I
(Test)		 LIST II
(Identification)
A. Bayer's test I. Phenol
B. Ceric ammonium nitrate test II. Aldehyde
C. Phthalein dye test III. Alcoholic-OH group
D. Schiff's test IV. Unsaturation

Choose the correct answer from the options given below :

A
(A)-(IV), (B)-(I), (C)-(II), (D)-(III)
B
(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
C
(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
D
(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
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