`(1.49xx14.9-0.51xx5.1)/(14.9-5.1)` के बराबर है।

((1.49xx14.9-0.51xx5.1)/(14.9-5.1)) is equal to (a) 0.20 (b) 2.00( c) 20 (d) 22 is equal to

0.5xx3.9-:1.3=?+0.5

The square root of (9.5xx0.0085xx18.9)/ (0.0017xx1.9xx2.1) is (9.5xx0.0085xx18.9)/ (0.0017xx1.9xx2.1) का वर्गमूल है-

(4. 2xx4. 2-1. 9xx1. 9)/(2. 3xx6. 1)=? (a) 0.5 (b) 1 (c) 1.9 (d) 4.2

The ionic product of water is 0.11 xx 10 ^(-14) at 273 K. 1.0 xx 10 ^(-14) at 298 K and 5.1 xx 10 ^(-14) at 373 K Deduce from this data whether the ionisation of water to hydrogen and hydrooxide ions is exothermic or endothermic.