TS Polycet (Polytechnic) 2020 Previous Question Paper with Answers And Model Papers With Complete Analysis

Q) Which one of the following compounds is used as reagent in the preparation of “Chloroform”?
A) Baking powder
B) Baking soda
C) Bleaching powder
D) Washing soda

View Answer
C) Bleaching powder

Q) The equation “E = hv” is proposed by
A) Maxwell
B) Einstein
C) Schrodinger
D) Max Planck

View Answer
D) Max Planck

Q) In a given shell, the orbital which has more penetration power towards the nucleus is
A) s
B) p
C) d
D) f

View Answer
A) s

Q) The total number of inner transition elements in the periodic table is
A) 10
B) 14
C) 28
D) 40

View Answer
C) 28

Q) The maximum number of electrons that can be accommodated in the M-shell of an atom’ is
A) 18
B) 14
C) 16
D) 32

View Answer
A) 18

Q) In which of the following molecule, the bond angle is 107°48′?
A) CH4
B) NH3
C) H2O
D) BF3

View Answer
B) NH3

Q) The number of bond pairs and lone pairs of electrons in H2O molecule are?
A) 2,1
B) 1,2
C) 2,2
D) 1,3

View Answer
C) 2,2

Q) Which of the following represents the correct order of electronegativity among halogens?
A) F>Br>Cl>!
B) l>Br>Cl>F
C) F > Cl > Br > I
D) Cl > F > Br > I

View Answer
C) F > Cl > Br > I

Q) 1 nanometer is equal to
A) 10-8 meter
B) 10-9 meter
C) 10-2 meter
D) 10-18 meter

View Answer
B) 10-9 meter

Q) The element having highest electronegativity is
A) Oxygen
B) Fluorine
C) Chlorine
D) Helium

View Answer
B) Fluorine
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