Total number of moles of oxygen atoms in 3 litre `O_3 (g)` at `27^@ C and 8.21` atm are :
(a) 3
(b) 1
(c) 1
(d) None of these

If a : b=3:4, then 4a :3b= (a) 4:3 (b) 3:4 (c) 1:1 (d) None of these

Find moles of O-atoms in 5.6 litres of SO_(3) at 0^(@)C ,1 atm ?

0. 3xx0. 3xx0. 3= (a) 2.7 (b) 0.27 (c) 0.027 (d) None of these

((-3)/2)^(-1) is equal to (a) 2/3 (b) 2/3 (c) 3/2 (d) none of these

If x^3+1/(x^3)=110 , then x+1/x=? (a) 5 (b) 10 (c) 15 (d) none of these

If for the matrix A ,\ A^3=I , then A^(-1)= (a) A^2 (b) A^3 (c) A (d) none of these

The volume of 2.89 g of carbon monoxide at 27^(@)C and 0.821 atm pressure is (A) 2.5 L (B) 4 L (C) 3.5 L (D) 3 L

The number of possible matrices of order 3xx3 with each entry 2 or 0 is (a) 9 (b) 27 (c) 81 (d) none of these

int_0^oo(dx)/([x+sqrt(x^2+1)]^3) is equal to (a) 3/8 (b) 1/8 (c) -3/8 (d) none of these

If the volumes of two cubes are in the ratio 8:1, then the ratio of their edges is (a) 8:1 (b) 2sqrt(3):1 (c) 2:1 (d) none of these