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

(#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

Asked In IIT-JEE MAN (7 years ago)

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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 (7 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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(#M40027982) IIT-JEE QUESTION 2012 question Keep an EYE

The shape of XeO2F4 molecule is
option
(A) trigonal bipyramidal
(B) square plannar
(C) tetrahedral
(D) see-saw

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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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(#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

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(#M40027865) IIT-JEE QUESTION 2010 question Keep an EYE

Based on VSEPR theory, the number of 90 degree F – Br – F angles in BrF5 is

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(#M40027817) IIT-JEE QUESTION 2011 question Keep an EYE

Let Tn be the number of all possible triangles
formed by joining vertices of an n-sided regular
polygon. If Tn+1 – Tn = 10 then the value of n is -
(1) 10 (2) 8 (3) 7 (4) 5

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(#M40027993) IIT-JEE QUESTION 2012 question Keep an EYE

Which of the following is correct ?
option
(A) a17 = a16 + a15
(B) c17 = c16 + c15
(C) b17 = b16 + c16
(D) a17 = c17 + b16

Asked In IIT-JEE MAN (7 years ago)

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(#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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