class 12

Missing

JEE Main

The increasing order of the reactivity of the following halides for the $S_{N}1$ reaction is: $(I)CH_{3}Cl∣C HCH_{2}CH_{3} (II)CH_{3}CH_{2}CH_{2}Cl (III)p−H_{3}CO−C_{6}H_{4}−CH_{2}Cl $

Connecting you to a tutor in 60 seconds.

Get answers to your doubts.

The I - V characteristic of an LED is

Higher order $(>3)$ reactions are rare due to :

Two Faraday of electricity is passed through a solution of $CuSO_{4}$. The mass of copper deposited at the cathode is : (at. mass of Cu = 63.5 amu)

Match List-I (Electromagnetic wave type) with List-II (Its association/application) and select the correct option from the choice given below the lists :

The period of oscillation of a simple pendulum is $T=2πgL .$ Measured value of L is 20.0 cm known to 1 mm accuracy and time for 100 oscillations of the pendulum is found to be 90 s using wrist watch of 1 s resolution. The accuracy in the determination of g is :

If the number of terms in the expansion of $(1−x2 +x_{2}4 )_{n},x=0,$is 28, then the sum of the coefficients of all the terms in this expansion, is :

The sum of first 9 terms of the series $11_{3} +1+31_{3}+2_{3} +1+2+31_{3}+2_{3}+3_{3} +.....$is

The intercepts on x-axis made by tangents to the curve, $y=∫_{0}∣t∣dt,x∈R,$which are parallel to the line $y=2x$, are equal to