For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?

A. N2+3h2 2nh3
B. H2+i2 2hi
C. 2no2 n2h4
D. Pci5 pci3+ci2

18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to ___________________?

A. 8
B. 5.1
C. 6
D. One/fifty one

Stronger is the oxidizing agent greater is the___________________?

A. Oxidation potential
B. Redox potential
C. E.m.f of cell
D. Standard reduction potential

Which is true about Zn-Cu galvanic cell ?

A. Reduction occurs at anode
B. K+ ion transfer from salt bridge to left beaker of znso4
C. Oxidation occurs at cathode
D. Anode is negatively charged

Nitrates of which pair gives different products on thermal decomposition___________________?

A. Na k
B. Mg ca
C. Li na
D. Li ca

Keeping in view the size of atom which is in correct order___________________?

A. Mg > sr
B. Ba > mg
C. Lu > ce
D. Ci > 1

Which one is not the use of silicones________________________?

A. Lubricant
B. Water repellent film
C. Rubber sheet
D. Medicine

Chemical composition of cinnabar is____________________?

A. Fes2
B. Hgs
C. Pbs
D. Zns

When chlorine is passed through hot solution of caustic soda the reaction is said as___________________?

A. Displacement
B. Reduction
C. Disproportionation reaction
D. Double displacement reaction

In the complex [Cr(OH)3(H2O)3] the coordination number is __________________?

A. 2
B. 3
C. 4
D. 6