TS Polycet (Polytechnic) 2016 Previous Question Paper with Answers And Model Papers With Complete Analysis

Q). The bond angle in BeCl₂ molecule is
A) 109°28’
B) 120°
C) 180°
D) 104°31’

Q). The chemical formula of rust is
A) Fe₂O₃.nH₂O
B) FeO
C) FeS
D) Fe₂O₅

Q). The reducing agent in thermite process is
A) Cu
B) Mg
C) Al
D) Hg

Q). The metal extracted from galena is
A) Hg
B) Pb
C) Mg
D) Zn

Q). Which of the following molecules undergoes sp hybridization?
A) CH₄
B) C₂H₄
C) C₂H₆
D) C₂H₂

Q). Which of the following is not an electrical conductor?
A) Nanotube
B) Graphene
C) Diamond
D) Graphite

Q). Who among the following disproved Vitalism theory?
A) Berzelius
B) Linus Pauling
C) Aufbau
D) Wohler

Q). The sweet odour substance formed by the reaction of an alcohol and a carboxylic acid is
A) ester
B) amine
C) ether
D) aldehyde

Q). The general formula of alkynes is
A) C_nH_2n.2
B) C_nH2_n-2
C) C_nH_2n
D) C_nH_2n-1

Q). The functional group in ketone is
A) >C=0
B) -COOH
C) -OH
D) -COOR