`0. 012-:1. 5=?` 0.8 (b) 0.08 0.008 (d) none of these

8 ml is equal to 0.8 L (b) 0.08 L 0.008 L (d) None of these

0.012xx0.15=0.8(b)0.080.008(d)0.0018

400-:0.1xx0.2=?(a)0.8(b)8(c)80(d)8000(e) None of these

The value of 3/(25) is 1.2 (b) 0.12 (c) 0.012 (d) None of these

(11.6-:0.8)(13.5-:2)=?( a) 98(b)99(c)100(d) None of these

(1.6xx3.2)/(0.08)=?( a) 0.8(b)6.4(c)8(d)64(d) None of these

0.08=0.8times y then y=

0.5, 0.55, 0.65, 0.8, ?

Calculate the concentration of K^(o+) (x) and Cl^(ɵ) (y) in a solution obtained by mixing 20 " mL of " 0.1 M NaCl , 30 " mL of " 0.2 M KCl, and 25 " mL of " 0.15 M KNO_3 and making the solution up to 100 mL. (a). x=0.06,y=0.0375 (b). x=0.0975, y=0.08 (c). x=0.08,y=0.08 (d). x=0.08,y=0.0375

Q.4 If A= [[0,1,-2],[-1,0,5],[2,5,0]] , then (a)A'=A (b)A'=-A (c)A'=2A (d) None of these