1- Mohr’s salt is an example of?
a) Acidic salt
b) Double salt
c) Mixed salt
d) None of these
- Lyman series lies in in?
a) Visible region
b) UV region
c) IR region
d) None of these - Light travels discontinuously this concept was given by?
a) Neil Bohr
b) Rutherford
c) Mosley
d) None - London dispersion forces are also known as?
a) Dipole forces Dipole induced dipole forces
b) instantaneous dipole
c) induced dipole forces
d) None of these - Strongest hydrogen bond is present in?
a) Ammonia
b) Water
c) Hydrofloric Acid
d) None of these - Transition temperature for Tin is?
a) 95.5°C
b) 128 °C
c) 32.38 °C
d) None of these - Units of rate constant for second order reaction?
a) mol/lit/sec
b) lit2/mol2/sec
c) Both of these
d) None of these - Atomic bomb involves the reaction?
a) Fission
b) Illusion
c) Fusion
d) None - Which transition Element is present in Vitamin B12?
a) Zinc
b) Copper
c) Nickle
d) None - Paper chromatography is a type of?
a) Liquid- liquid chromatography
b) partition chromatography
c) Both of these
d) None - Which of the following is not a magic number?
a) 2
b) 8
c) 28
d) None - Which among the following elements do not give flame test?
a) S block
b) P block
c) Both
d) None - Solvent extraction depend upon which of the following?
a) pH
b) Temperature
c) Pressure
d) None of these - n+l rule is helpful for which of the following?
a) Hund’s rule
b) Auf Bau principle
c) Pauli’s exclusion principle
d) None - PbCl2 , PbCl4 ,Which one is ionic from the following?
a) PbCl2
b) PbCl4
c) Both are ironic
d) None - SI unit of radioactivity is?
a) Curie
b) Rutherford
c) Dps
d) None - According to group displacement law after beta decay the element willmove?
a) 1 step forward in a period
b) 2 step forward in a period
c) 2 step backward in a period
d) None - If Kd value is very very small then we will use which type of solventextraction??
a) Batch extraction
b) simple extraction
c) Continuous extraction
d) None - Which among the following has highest electron affi nity value?
a) F
b) Cl
c) Br
d) None - Which of the following is diamagnetic?
a) O2
b) CO2
c) B2
d) None - Type of hybridization in ammonium ion?
a) Sp2
b) Sp3
c) Sp
d) None of these - What will be the bond order of CO?
a) 2
b) 2.5
c) 1.5
d) None - Geometry of sulphuric acid?
a) Tetrahedral
b) Pyramidal
c) Trigonal Planner
d) None - Lattice energy down the group?
a) Decreases
b) Remains constant
c) Increases
d) None of these - Which among the following is a path function?
a) Temperature
b) Pressure
c) Enthalpy
d) None of these
