If `A = {1,2,3,4,5,6}`, the fill up with `in or cancel in :
(i) 2 … A
(ii) 7 … A
(iii) 0 … A
(iv) 5 … A.

Let A = {1,2,3,4,5,6} . Insert the appropriate symbol in or cancel(in) in the black spaces : (i) 5 …. A (ii) 8 …. A (iii) 0 …. A (iv) 4 in A (v) 2 in A (vi) 10 …. A .

The number of unpaired electrons in O_2 is ……

The number of unpaired electrons in O_2 is ……

Complete and balance the following equations. (i) KO_(2) + H_(2) O to ….. + O_(2) (ii) NaNH_(2) + C to …… + H_(2) (iii) NaOH + I_(2) to …….. NaIO_(3) + H_(2)O (iv) KI + H_(2)SO_(4) + H_(2)O_(2) to I_(2) + …… H_(2)O

the vaule of arg (x) when x lt 0 is (a) 0 (b) π /2 (c) π (d) none of these

Make correct statements by filling in the symbols sub or cancel(sub) in the blanks spaces : (i) {2,3,4}…{1,2,3,4,5} (ii) {a,b,c} …. {b,c,d} (iii) {x : x is a student of Class XI of your school}…{x : x student of your school} (iv) {x : x is a circle in the plane with radius 1 unit} (v) {x : x is a triangle in a plant}... {x : x is a rectangle in the plane} (vi) {x : x is an equililateral triangle in a plane} .... {x : x is a triangle in the same plane} (viii) {x : x is an even natural number} ... {x : x is an integer}.

Write the following sets in the set-builder form : (i) {3,6,9,12} (ii) {2,4,8,16,32} (iii) {5,25,125,625} (iv) {2,4,5,….} (v) {1,4,9,….,100} .

Complete and balance the following equations. (i) Mg(HCO_(3))_(2) + Ca(OH)_(2) to MgCO_(3) + … + H_(2)O (ii) MgO + CaC_(2) to Mg + …. 2C (iii) CaO + c overset("Heat")(to) … + CO

Following frequency distribution given the weights of 38 students of a class: Weight in Kg: 31-35 36-40 41-45 46-50 51-55 56-60 61-65 66-70 71-75 No. of students9 5 14 3 1 2 2 1 1 Find the probability that weight of a student in the class is: (i)at most 60 kg (ii)at least 36 kg (iii)not more than 50kg. Also define two events in this context, one having probability 0 and the other having probability 1.

CFSE of high-spin complex d^(5)Mn^(2+) complex is …….