What is ΔH equal to z according to the first law of thermodynamics:
a)ΔE + PΔV
b)-ΔE + PΔV
c)ΔE – PΔV
d)-ΔE – PΔV
What is the mathematical statement of the first law of thermodynamics:
a)ΔE=q-w
b)ΔE= -q+w
c)ΔE= -q-w
d)ΔE=q+w
The nature of attraction which holds molecular crystal is:
a)Hydrogen bond
b)Ionic bond
c)Van Der Waals force
d)Covalent bond
Which of the following is a covalent crystal:
a)MgBr2
b)NaCl
c)Diamond
d)KI
Which pair of the element markedly differ from other members of the respective groups:
a)Lithium and Beryllium
b)Cesium and Barium
c)Sodium and Magnesium
d)Potassium and Calcium
Superoxide of group IA element (M) has formula:
a)M2O3
b)M2O
c)M2O2
d)MO2
Metallic property in a group of P block element has a trend:
a)Irregular trend
b)Remains same
c)Increases
d)Decreases
Which of the following best describes the ionic reactions of inorganic compounds:
a)Moderate slow
b)Very fast
c)Not occurs
d)Very slow
What is the order of reaction if the unit of K is sec^-1:
a)Two
b)One
c)Three
d)Four
Which of the following is an Amino acid:
a)Aniline
b)Benzoic acid
c)Aspartic acid
d)Palmitic acid
