• Placement Questions
• /
• IIT-JEE

IIT-JEE Latest Exam Pattern - IIT-JEE Sample Question with Solutions Page 5

(#M40028122) IIT-JEE QUESTION 2007 Question Keep an EYE

Let a, b, c
be unit vectors such that a + b + c = 0 . Which one of the following is correct?
(A) a × b = b × c = c × a = 0
(B) a × b = b × c = c × a ≠ 0(C) a × b = b × c = a × c = 0
(D) a × b, b × c, c × a are mutually perpendicular

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (2)   (2) Submit Your Solution

(#M40028121) IIT-JEE QUESTION 2007 Question Keep an EYE

Sodium fusion extract, obtained from aniline, on treatment with iron (II) sulphate and H2SO4 in presence of air gives a
Prussian blue precipitate. The blue colour is due to the formation of
(A) Fe4[Fe(CN)6]3 (B) Fe3[Fe(CN)6]2
(C) Fe4[Fe(CN)6]2 (D) Fe3[Fe(CN)6]3

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (2)   (2) Submit Your Solution

(#M40028120) IIT-JEE QUESTION 2007 Question Keep an EYE

Among the following, identify the correct statement.
(A) Chloride ion is oxidized by O2 (B) Fe2+ is oxidized by iodine
(C) Iodide ion is oxidized by chlorine (D) Mn2+ is oxidized by chlorine

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (1)   (2) Submit Your Solution

(#M40028119) IIT-JEE QUESTION 2007 Question Keep an EYE

While Fe3+ is stable, Mn3+ is not stable in acid solution because
(A) O2 oxidises Mn2+ to Mn3+ (B) O2 oxidises both Mn2+ and Fe2+ to Fe3+
(C) Fe3+ oxidizes H2O to O2 (D) Mn3+ oxidises H2O to O2

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (7)   (2) Submit Your Solution

(#M40028118) IIT-JEE QUESTION 2007 Question Keep an EYE

The electrophile in this reaction is
(A) : CHCl (B) +CHCl2
(C) :CCl2 (D) .CCl3

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (2)   (0) Submit Your Solution

(#M40028117) IIT-JEE QUESTION 2007 Question Keep an EYE

Which one of the following reagents is used in the above reaction?
(A) aq. NaOH + CH3Cl (B) aq. NaOH + CH2Cl2
(C) aq. NaOH + CHCl3 (D) aq. NaOH + CCl4

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (0)   (1) Submit Your Solution

(#M40028116) IIT-JEE QUESTION 2007 Question Keep an EYE

STATEMENT-1: Molecules that are not superimposable on their mirror images are chiral
because
STATEMENT-2: All chiral molecules have chiral centres.
(A) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1
(B) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
(C) Statement-1 is True, Statement-2 is False
(D) Statement-1 is False, Statement-2 is True

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (1)   (0) Submit Your Solution

(#M40028115) IIT-JEE QUESTION 2007 Question Keep an EYE

A solution of metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless
solution. Moreover, the solution of metal ion on treatment with a solution of cobalt(II) thiocyanate gives rise to a deep
blue crystalline precipitate. The metal ion is
(A) Pb2+ (B) Hg2+
(C) Cu2+ (D) Co2+

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (0)   (0) Submit Your Solution

(#M40028114) IIT-JEE QUESTION 2007 Question Keep an EYE

The number of stereoisomers obtained by bromination of trans-2-butene is
(A) 1 (B) 2
(C) 3 (D) 4

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (3)   (4) Submit Your Solution

(#M40028113) IIT-JEE QUESTION 2007 Question Keep an EYE

Consider a titration of potassium dichromate solution with acidified Mohr’s salt solution using diphenylamine as
indicator. The number of moles of Mohr’s salt required per mole of dichromate is
(A) 3 (B) 4
(C) 5 (D) 6

Asked In IIT-JEE MAN (12 years ago)

Unsolved

Is this Puzzle helpful?   (4)   (4) Submit Your Solution