TS Polycet (Polytechnic) 2017 Previous Question Paper with Answers And Model Papers With Complete Analysis

Q). Metalloids are
A) s-block elements
B) d-block elements
C) f-block elements
D) p-block elements

Q). The ionization energy in the periodic table
A) decreases go down the group
B) increases go down the group
C) decreases from the left to right in a period
D) remains same go down the group

Q). Which of the following elements lose three valence electrons to get octet in its outer shell?
A) Cs
B) Mg
C) O
D) AI

Q). The element with negative charge having the electronic configuration 2, 8, 8 is
A) O^2-
B) Cl^–
C) S^2-
D) P^3-

Q). The condition for the formation of ionic bond is
A) elements involved should be of equal size
B) high electro positivity of atoms
C) atoms should have low ionization potential
D) elements with high electronegativity difference

Q). The molecule involves sp³ hybridization is
A) CH₄
B) NH₃
C) H₂O
D) All

Q). Ionic compounds are soluble in
A) benzene
B) CCl₄
C) kerosene
D) water

Q). Carnallite is the ore of
A) Pb
B) Mg
C) Hg
D) Zn

Q). Thermite reaction involves reaction of metal oxide with
A) Ag
B) Fe
C) AI
D) Hg

Q). How many unpaired electrons the carbon atom possess in the ground state?
A) 2
B) 3
C) 4
D) 1