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Frequently Asked IIT-JEE Latest Exam Pattern - IIT-JEE Sample Question with Solutions Page 3

(#M40028131) IIT-JEE QUESTION 2007 Question Keep an EYE

Among the electrolytes Na2SO4, CaCl2, Al2(SO4)3 and NH4Cl, the most effective coagulating agent for
Sb2S3 sol is
(A) Na2SO4 (B) CaCl2
(C) Al2(SO4)3 (D) NH4Cl

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(#M40027351) IIT-JEE QUESTION Physics Keep an EYE

A cheap wrist watch loses time at the rate of
8.5 second a day. How much time will the
watch be off at the end of a month ?

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(#M40027369) IIT-JEE QUESTION Unit and Dimension Keep an EYE

If there is a physical quantity whose
dimensional formula is [ML2T–2]. Determine
the physical quantity

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(#M40027737) IIT-JEE QUESTION Maths Keep an EYE

If z is any complex number satisfying |z – 3 – 2i| £ 2, then the minimum value of |2z – 6 + 5i| is

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(#M40027767) IIT-JEE QUESTION 2011 question Keep an EYE

Oxidation states of the metal in the minerals haematite and magnetite, respectively, are
(A) II, III in haematite and III in magnetite (B) II, III in haematite and II in magnetite
(C) II in haematite and II, III in magnetite (D) III in haematite and II, III in magnetite

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(#M40027776) IIT-JEE QUESTION 2011 question Keep an EYE

The density of a solid ball is to be determined in an experiment. The diameter of the ball is measured with
a screw gauge, whose pitch is 0.5 mm and there are 50 divisions on the circular scale. The reading on the
main scale is 2.5 mm and that on the circular scale is 20 divisions. If the measured mass of the ball has a
relative error of 2 %, the relative percentage error in the density is
(A) 0.9 % (B) 2.4 %
(C) 3.1 % (D) 4.2 %

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(#M40027753) IIT-JEE QUESTION Physics Keep an EYE

A police car with a siren of frequency 8 kHz is moving with uniform velocity 36 km/hr towards a tall
building which reflects the sound waves. The speed of sound in air is 320 m/s. The frequency of the siren
heard by the car driver is
(A) 8.50 kHz (B) 8.25 kHz
(C) 7.75 kHz (D) 7.50 kHZ

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(#M40019711) IIT-JEE QUESTION AP,GP,HP Keep an EYE

If a,b,c,b are in AP then abc, abd, acd, bcd are,
(a). not in AP/GP/HP
(b). in AP
(b). in GP
(d). in HP

Asked In IIT-JEE Chandni Maurya (12 years ago)

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(#M40028091) IIT-JEE QUESTION Mental Ability Keep an EYE

A 4.0 molar aqueous solution of NaCl is prepared and 500 mL of this solution is electrolysed. This leads to the evolution of
chlorine gas at one of the electrodes (atomic mass: Na = 23, Hg = 200; 1 Faraday=96500 coulombs)


The total number of moles of chlorine gas evolved is
(A) 0.5 (B) 1.0
(C) 2.0 (D) 3.0

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(#M40027986) IIT-JEE QUESTION 2012 question Keep an EYE

25mL of household bleach solution was mixed with 30mL of 0.50MKI and 10mL of 4N acetic acid. In the titration of the liberated iodine, 48mL of 0.25 N Na2S2O3was used to reach the end point. Themolarity of the
household bleach solution is
option
(A) 0.48 M
(B) 0.96 M
(C) 0.24 M
(D) 0.024 M

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