class 12

Missing

JEE Main

The transition metal ions responsible for color in ruby and emerald are, respectively :

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In Carius method of estimation of halogens, 250 mg of an organic compound gave 141 mg of $AgBr$. The percentage of bromine in the compound is: (at. Mass Ag = 108, Br = 80)

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 x-coordinate of the incentre of the triangle that has the coordinates of mid points of its sides as (0, 1), (1, 1) and (1, 0) is

The I - V characteristic of an LED is

Two capacitors \displaystyle{C}_{}

Match List - I (Fundamental Experiment) with List - II (its conclusion) and select the correct option from the choice given below the list :

Which of the vitamins given below is water soluble ?

A signal of 5 kHz frequency is amplitude modulated on a carrier wave of frequency 2 MHz. The frequencies of the resultant signal is/are :