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AP Polycet (Polytechnic) 2022 Previous Question Paper with Answers And Model Papers With Complete Analysis

AP Polycet Mock Test

101)Which of the following electromagnetic waves has highest velocity?

A) Violet

B) Green

C) Red

D) All have same velocity

View Answer

D) All have same velocity
Explanation:All electromagnetic waves travel at the same speed in vacuum (≈ 3×10⁸ m/s).
Answer:All have same velocity

102)Which of the following quantum numbers gives information about orientation of orbital?

A) Principal quantum number

B) Angular momentum quantum number

C) Magnetic quantum number

D) Spin quantum number

View Answer

C) Magnetic quantum number
Explanation:Magnetic quantum number (mₗ) describes the orientation of an orbital in space.
Answer:Magnetic quantum number

103)The electronic configuration of element ‘S’ is

A) 1s² 2s² 2p⁶ 3s² 3p⁴

B) 1s² 2s² 2p⁶ 3s² 3p³

C) 1s² 2s² 2p⁶ 3s² 3p²

D) 1s² 2s² 2p⁶ 3s² 3p¹

View Answer

A) 1s² 2s² 2p⁶ 3s² 3p⁴
Explanation:Element ‘S’ (sulfur) has atomic number 16.
Its electron configuration:
$1s^2\, 2s^2\, 2p^6\, 3s^2\, 3p^4$

Answer:1s² 2s² 2p⁶ 3s² 3p⁴

104)The maximum number of electrons that can be accommodated in a subshell with angular momentum quantum number 1 is

A) 2n²

B) 2(2l+1)

C) 2

D) (21+1)

View Answer

B) 2(2l+1)
Explanation:For angular momentum quantum number l = 1 (i.e. p-subshell), number of orbitals = $2l+1 = 3$

,
Each orbital holds 2 electrons → total = $2(2l+1) = 6$

Answer:2(2l + 1)

105)Which among the following is a non- metal?

A) Potassium

B) Chlorine

C) Silicon

D) Sodium

View Answer

B) Chlorine
Explanation:Among the options, Chlorine is the only non-metal.
Answer:Chlorine

106)Which of the following periodic classification is not based on the atomic weights of elements?

A) Dobereiner’s law of triads

B) Newlands law of octaves

C) Mendeleev periodic table

D) Modern periodic table

View Answer

D) Modern periodic table
Explanation:Modern periodic table is based on atomic number, not atomic weight.
Answer:Modern periodic table

107)An element with atomic number 14 has a valency of

A) 1

B) 2

C) 4

D) 3

View Answer

C) 4
Explanation:Atomic number 14 → Silicon (Si) → configuration: 2, 8, 4 ⇒ valency = 4
Answer:4

108)What is the family name of VII A group elements?

A) Alkali earth metals

B) Alkali metals

C) Chalcogens

D) Halogens

View Answer

D) Halogens
Explanation:Group VIIA elements (F, Cl, Br, etc.) are known as halogens.
Answer:Halogens

109)Which type of bond is formed due to transfer of electrons between two dissimilar atoms?

A) Electrovalent bond

B) Electrostatic bond

C) Ionic bond

D) All of these

View Answer

D) All of these
Explanation:Ionic (electrovalent) bond forms by transfer of electrons between atoms of different electronegativity. All given terms refer to this.
Answer:All of these

110)Which of the following is correct regarding the melting points of ionic, polar covalent and non-polar covalent compounds?

A) Polar covalent > ionic > non-polar covalent

B) Ionic > Polar covalent > non-polar covalent

C) Ionic > non-polar covalent > polar covalent

D) All have same melting point

View Answer

B) Ionic > Polar covalent > non-polar covalent
Explanation:Ionic > Polar covalent > Non-polar covalent in terms of melting point, due to strong electrostatic forces in ionic compounds.
Answer:Ionic > Polar covalent > non-polar covalent

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