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Frequently Asked IIT-JEE Latest Exam Pattern - IIT-JEE Sample Question with Solutions Page 12

(#M40028084) IIT-JEE QUESTION Mental Ability Keep an EYE

The species having bond order different from that in CO is
(A) NO− (B) NO+
(C) CN− (D) N2

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(#M40028123) IIT-JEE QUESTION 2007 Question Keep an EYE

If |z| = 1 and z ≠ ± 1, then all the values of then z/(1-z^2) lie on

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(#M40021802) IIT-JEE QUESTION STRAIGHT LINE Keep an EYE

For a > b > c > 0, the distance between (1, 1) and the point of intersection of the lines ax + by + c = 0 and bx + ay + c = 0 is less than 2 2, then
option
A. a+b-c>0
B. a+b-c<0
C. a-b-c=0
D. None of these

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(#M40021777) IIT-JEE QUESTION statement type Keep an EYE

Consider
L1 : 2x + 3y + p - 3 = 0
L2 : 2x + 3y + p + 3 = 0,
where p is a real number, and C : x^2 + y^2 + 6x - 10y + 30 = 0.
STATEMENT -1 : If line L1 is a chord of circle C, then line L2 is not always a diameter of circle C.
and
STATEMENT -2 : If line L1 is a diameter of circle C, then line L2 is not a chord of circle C.
(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

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(#M40027907) IIT-JEE QUESTION 2010 question Keep an EYE

The packing efficiency of the two-dimensional square unit cell shown below
is
(A) 39.27% (B) 68.02%
(C) 74.05% (D) 78.54%.

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(#M40027853) IIT-JEE QUESTION 2010 question Keep an EYE

The species which by definition has ZERO standard molar enthalpy of formation at 298 K is
(A) Br2 (g) (B) Cl2 (g)
(C) H2O (g) (D) CH4(g)

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(#M40027851) IIT-JEE QUESTION 2011 question Keep an EYE

Synthesis of each molecule of glucose in
photosynthesis involves -
(1) 8 molecules of ATP
(2) 6 molecules of ATP
(3) 18 molecules of ATP
(4) 10 molecules of ATP

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(#M40027744) IIT-JEE QUESTION Chemistry Keep an EYE

Extraction of metal from the ore cassiterite involves
(A) carbon reduction of an oxide ore (B) self-reduction of a sulphide ore
(C) removal of copper impurity (D) removal of iron impurity

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(#M40028090) IIT-JEE QUESTION Mental Ability Keep an EYE

STATEMENT-1: In water, orthoboric acid behaves as a weak monobasic acid.
because
STATEMENT-2: In water, orthoboric acid acts as a proton donor.
(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-1is True, Statement-2 is False.
(D) Statement-1 is False, Statement-2 is True.

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(#M40027749) IIT-JEE QUESTION Chemistry Keep an EYE

The maximum number of electrons that can have principal quantum number, n = 3, and spin quantum
number, ms=-1/2,is

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