A) PAN
B) PBN
C) NO2
D) All of these
Lecturer Chemistry Past Paper 2017
Which is the sequence of regions of the electromagnetic spectrum?
A) Cosmic rays, X-rays, Visible and UV
B) Microwave, X-rays, Visible and UV
C) UV, Cosmic rays, Microwave, X-rays and Visible
D) Visible, UV, X-rays, and Cosmic rays
Which of the following is the weakest base?
A) Ammonia
B) Pyridine
C) Pyrrole
D) Aniline
pH of human blood is:
A) 7.0
B) 7.35
C) 7.85
D) 6.78
Which set of hybrid orbital has square planar shape?
A) Sp3
B) dsp2
C) dsp3
D) d2sp3
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The mass of a particle is:
A) Four item that of H atom
B) Four atom the mass of one amu
C) Four items 0.166 x 10-26 kg
D) All statements are correct
The radioactive isotope used for testing deep-seated cancer growth is?
A) I-131
B) P-30
C) Co-60
D) P-32
Which enthalpy change is not used in born Haber cycle?
A) ΔH1
B) ΔH2
C) ΔH3
D) ΔH4
hydrolysis reaction of fats with caustic soda is known as?
A) Acetylene
B) Saponifucation
C) Carboxylation
D) Esterification
which metal is used in thermite process because of its activity?
A) Iron
B) Copper
C) Aluminum
D) Zinc