1. Home
  2. |  
  3. Engineering Exams|  


Jul 2, 2014 15:48 IST

    The Jee Main 2013 exam was conducted by the CBSE. This year the exam was aconducted for the NITs, IIITs, Centraally funded institutions and universities and State funded universities along with the IITs. The paper was consist of 90 questions (Physics-30, Mathematics- 30, Chemistry-30).


    Qu. The molarity of a solution obtained by mixing 750 mL of 0.5 (M) HCl with 250 mL of 2(M)HCl will be:
    (1) 1.00 M                      (2) 1. 75 M        
    (3) 0.975 M                    (4) 0.875 M

    Ans. (4)

    Qu. A solution of (–) –1 – chloro –1 – phenylethane is toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of :
    (1) carbene                     (2) carbocation    
    (3) free radical                 (4) carbanion

    Ans. (2)


    Qu. The circle passing through (1, −2) and touching the axis of x at (3, 0) also passes through the point
    (1) (2, −5)                     (2) (5, −2)        
    (3) (−2, 5)                     (4) (−5, 2)

    Ans. (2)

    Qu. All the students of a class performed poorly in Mathematics. The teacher decided to give grace marks of 10 to each of the students. Which of the following statistical measures will not change even after the grace marks were given?

    (1) Median                       (2) mode        
    (3) variance                     (4) mean

    Ans. (3)


    Qu. A diode detector is used to detect an amplitude modulated wave of 60% modulation by using a condenser of capacity 250 pico farad in parallel with a load resistance 100 kilo ohm. Find the maximum modulated frequency which could be detected by it.
    (1) 10.62 kHz                    (2) 5.31 MHz        
    (3) 5.31 kHz                     (4) 10.62 MHz

    Ans. (3)

    Qu. The supply voltage to a room is 120 V. The resistance of the lead wires is 6 Ω. A 60 W bulb is already switched on. What is the decrease of voltage across the bulb, when a 240 W heater is switched on in parallel to the bulb?
    (1) 2.9 Volt                    (2) 13.3 Volt
    (3) 10.04 Volt                     (4) zero volt

    Ans. (3)

    Click Here to Download JEE MAIN 2013 Paper

    Click Here for the Analysis of JEE MAIN-2013

    DISCLAIMER: JPL and its affiliates shall have no liability for any views, thoughts and comments expressed on this article.

    Latest Videos

    Register to get FREE updates

      All Fields Mandatory
    • (Ex:9123456789)
    • Please Select Your Interest
    • Please specify

    • ajax-loader
    • A verifcation code has been sent to
      your mobile number

      Please enter the verification code below

    This website uses cookie or similar technologies, to enhance your browsing experience and provide personalised recommendations. By continuing to use our website, you agree to our Privacy Policy and Cookie Policy. OK

    Register to view Complete PDF