In which of the following changes is ∆S negative ?
H2O(l) → H2O(s)
C(s) + 1/2O2,/sub>(g) → CO(g)
PCI5(g) → PCl3(g) + Cl2(g)
NaCl(s) + aq →Na+ (aq) + Cl- (aq)
NH3(g) + HCl(g)
Correct answer is A
No explanation has been provided for this answer.
Which of the following statements is not correct about Land Use Act?
Land cannot be used for any purpose
Government has control over unused land
It does not lead to land fragmentation
It aims at re-allocation of land for farming purposes
Correct answer is A
No explanation has been provided for this answer.
an acidic oxide
a basic oxide
an amphoteric oxide
a neutra oxide
a mixed oxide
Correct answer is A
No explanation has been provided for this answer.
What does X atand for in the following expression? X = Log(10)(H+)
Enthalpy change (∆H)
Equilibrium constant (K)
Solubility product
Degree of acidity (pH)
lonic product of water
Correct answer is D
No explanation has been provided for this answer.
Teeming population of insect pests
Aggressive agricultural extension
Chaotic marketing systems
Pollution of the environment
Correct answer is B
No explanation has been provided for this answer.