In an isochoric process, the increase in internal energy is equal to:
the sum of heat absorbed and work done
the work done
heat absorbed
heat evolved
75 c.c. of N/5 H2SO4, 10 c.c. of N/2 HCl and 30 c.c. of N/10 HNO3 are mixed together. The strength of the resulting acid mixture is:
0.1N
0.2N
0.3N
0.4N
Which of the following ions is paramagnetic?
Cu++
Zn++
Ni++
Both 'a' and 'c'
D.
Both 'a' and 'c'
Paramagnetic compounds have unpaired electrons. These are attracted to magnetic fields.
Among all the given options, Cu++ and Ni++ are paramagnetic.
The pH of blood is :
greater than 10
less than 6
greater than 7 and less than 8
greater than 8 and less than 9