UPSC Combined Geo-Scientist 2022 Chemistry Paper II Question Paper PDF

Central Government Jobs Other Jobs 2022

  • Year 2022
  • Conducted By UPSC
  • Questions 120
  • Maximum Marks 300
  • Duration Two Hours
  • Languages English

Exam Details

Detail Information
Examination Combined Geo-Scientist (Preliminary) Examination
Year 2022
Conducting Body UPSC
Paper Paper-II (Chemistry)
Subject Chemistry
Duration Two Hours
Maximum Marks 300
Number of Questions 120
Question Type Objective (MCQ)

This document contains the question paper for the UPSC Combined Geo-Scientist (Preliminary) Examination 2022, specifically Paper II focusing on Chemistry. The exam was conducted by UPSC and allowed candidates two hours to answer 120 objective-type questions, carrying a maximum of 300 marks. This paper is crucial for aspirants preparing for the Geo-Scientist recruitment, offering a direct look at the types of questions, difficulty level, and subject coverage in Chemistry. Analyzing this paper helps candidates understand the exam's scope and strategize their preparation effectively.

Major Topics Covered

  • Radial Nodes
  • Angular Nodes
  • Atomic Orbitals (s, p, d)
  • Quantum Numbers
  • Covalent Radius
  • Internuclear Distance
  • Isoelectronic Ions
  • Chemical Bonding
  • Atomic Structure

Why This Paper is Important

  • Useful for Combined Geo-Scientist (Preliminary) Exa preparation
  • Helps understand the latest exam pattern
  • Useful for practice and self-assessment
  • Covers frequently asked General Studies topics
  • Helpful for analysing question trends

Related Resources

  • Combined Geo-Scientist (Preliminary) Examination 2021 Paper II (Chemistry)
  • Combined Geo-Scientist (Main) Examination 2022 Paper III (Geology)
  • UPSC IES 2022 Mechanical Engineering Paper I
  • Combined Geo-Scientist (Preliminary) Examination 2022 Chemistry Paper II Answer Key
  • Combined Geo-Scientist (Preliminary) Examination Syllabus
  • UPSC Chemistry Syllabus for Competitive Exams
  • Combined Geo-Scientist (Preliminary) Examination Pattern
  • UPSC Exam Pattern Overview

Instructions

  • IMMEDIATELY AFTER THE COMMENCEMENT OF THE EXAMINATION, YOU SHOULD CHECK THAT THIS TEST BOOKLET DOES NOT HAVE ANY UNPRINTED OR TORN OR MISSING PAGES OR ITEMS, ETC.
  • IF SO, GET IT REPLACED BY A COMPLETE TEST BOOKLET.
  • Please note that it is the candidate's responsibility to encode and fill in the Roll Number and Test Booklet Series A, B, C or D carefully and without any omission or discrepancy at the appropriate places in the OMR Answer Sheet.
  • Any omission/discrepancy will render the Answer Sheet liable for rejection.
  • You have to enter your Roll Number on the Test Booklet in the Box provided alongside.
  • DO NOT write anything else on the Test Booklet.
  • This Test Booklet contains 120 items (questions).
  • Each item comprises four responses (answers).
  • You will select the response which you want to mark on the Answer Sheet.
  • In case, you feel that there is more than one correct response, mark the response which you consider the best.
  • In any case, choose ONLY ONE response for each item.
  • You have to mark your responses ONLY on the separate Answer Sheet provided. See directions in the Answer Sheet.
  • Before you proceed to mark in the Answer Sheet the response to various items in the Test Booklet, you have to fill in some particulars in the Answer Sheet as per instructions sent to you with your Admission Certificate.
  • After you have completed filling in all your responses on the Answer Sheet and the examination has concluded, you should hand over to the Invigilator only the Answer Sheet.
  • You are permitted to take away with you the Test Booklet.
  • Sheets for rough work are appended in the Test Booklet at the end.
  • Penalty for wrong answers : THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE.

Questions (page 2)

Q1. The numbers of radial nodes, planar angular nodes and non-planar angular nodes in 3d_{z2}}, 3s and 3px orbitals are

  • (a) (0, 0, 2), (2, 0, 0), (1, 1, 0) respectively
  • (b) (0, 2, 0), (2, 0, 0), (1, 1, 0) respectively
  • (c) (2, 0, 0), (2, 0, 0), (0, 1, 1) respectively
  • (d) (0, 2, 0), (0, 2, 0), (1, 1, 0) respectively

Q2. The angular wave function for hydrogen atom depends upon the quantum number(s)

  • (a) n and l only
  • (b) l and ml only
  • (c) ml only
  • (d) l, ml and n

Q3. The total number of nodal planes possible for all the atomic orbitals with a value of principal quantum (n) = 3 is

  • (a) 8
  • (b) 9
  • (c) 11
  • (d) 14

Q4. The covalent radius of C atom is 0.77 Å and that of H atom is 0.37 Å. What is the internuclear distance between C and H atoms in CH4 molecule?

  • (a) 1.14 Å
  • (b) 1.20 Å
  • (c) 1.25 Å
  • (d) 1.41 Å

Q5. The bond distance in Cl2 molecule is 1.98 Å. What will be its covalent radius?

  • (a) 0.99 Å
  • (b) 1.00 Å
  • (c) 0.98 Å
  • (d) 1.10 Å

Q6. Which one of the following represents the correct order of size among O^{2-}, F^{-}, Na^{+} and Mg^{2+} isoelectronic ions?

  • (a) O^{2-} < F^{-} < Na^{+} < Mg^{2+}
  • (b) Mg^{2+} < Na^{+} < F^{-} < O^{2-}
  • (c) Mg^{2+} < Na^{+} < O^{2-} < F^{-}
  • (d) O^{2-} < F^{-} < Mg^{2+} < Na^{+}

Q7. Graphite is used as a dry lubricant in machines running at high temperature where oil cannot be used as lubricant, because

  • (a) graphite has layered structure and the layers are held by van der Waals' forces and cleaves easily between layers
  • (b) graphite is a crystalline substance
  • (c) graphite conducts electricity and is thermodynamically stable
  • (d) each carbon atom in the hexagonal ring undergoes sp2 hybridization

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Frequently asked questions

What is the name of the examination?

The examination is the Combined Geo-Scientist (Preliminary) Examination.

Which year is this question paper from?

This question paper is from the year 2022.

Who conducts the Combined Geo-Scientist Examination?

The examination is conducted by the Union Public Service Commission (UPSC).

What is the subject of Paper II?

Paper II of this examination is for Chemistry.

What is the total time allowed for the examination?

The time allowed for the examination is Two Hours.

What are the maximum marks for this paper?

The maximum marks for this paper are 300.

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