Sr. Scientific Officer 2019 Chemistry Question Paper PDF

Rajasthan Government Jobs Other Jobs 2019

  • Year 2019
  • Conducted By RPSC
  • Questions 100
  • Maximum Marks 100
  • Duration 2.00 Hours
  • Languages Hindi & English

Exam Details

Detail Information
Examination Sr. Scientific Officer
Year 2019
Conducting Body RPSC
Paper Chemistry Division
Subject Chemistry
Duration 2.00 Hours
Maximum Marks 100
Number of Questions 100
Question Type Objective (MCQ)

This is the official question paper for the Sr. Scientific Officer examination conducted by RPSC in 2019 for the Chemistry Division. The paper consists of 100 objective questions, with a maximum mark of 100 and a time duration of 2.00 hours. This paper is crucial for candidates preparing for the Sr. Scientific Officer role, offering insights into the exam pattern, difficulty level, and important topics covered in Chemistry. Practicing with this previous year's paper can significantly aid aspirants in their preparation strategy and help them achieve success in the competitive examination. This previous year SR. SCIENTIFIC OFFICER 2019 question paper (2019) is useful for Other Jobs aspirants preparing for Rajasthan government recruitment. The paper was conducted by RPSC and reflects the official exam pattern, marking scheme and difficulty level seen in recent cycles. Use it for timed practice, topic-wise revision and understanding how questions are framed in the real examination. Download the free PDF on QuizCurrent to read instructions, attempt MCQs and compare your answers with the study notes provided on this page. Key syllabus areas include Chemistry, Organic Chemistry, Inorganic Chemistry, Analytical Chemistry. Useful for SR. SCIENTIFIC OFFICER preparation. Helps understand the latest exam pattern. Useful for practice and self-assessment.

Major Topics Covered

  • Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Analytical Chemistry

Why This Paper is Important

  • Useful for SR. SCIENTIFIC OFFICER 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

  • Sr. Scientific Officer 2021 Chemistry Division Question Paper
  • RPSC Chemistry Officer Previous Year Paper
  • Rajasthan PSC Chemistry Exam Paper 2018
  • Sr. Scientific Officer 2019 Chemistry Answer Key
  • Sr. Scientific Officer Chemistry Syllabus
  • RPSC Chemistry Syllabus
  • Sr. Scientific Officer Exam Pattern
  • RPSC Exam Pattern

Instructions

  • Answer all questions. सभी प्रश्नों के अंक समान हैं ।
  • प्रत्येक प्रश्न का केवल एक ही उत्तर दीजिए ।
  • If more than one answers are marked, it would be treated as एक से अधिक उत्तर देने को दशा में प्रश्न के उत्तर को गलत माना जाएगा ।
  • wrong answer. प्रत्येक प्रश्न के चार वैकल्पिक उत्तर दिये गये हैं, जिन्हें क्रमश: 1, 2, 3,
  • Each question has four alternative responses marked serially 4 अंकित किया गया है ।
  • अभ्यर्थी को सही उत्तर निर्दिप्ट करते हुए उनमें as 1, 2, 3,
  • You have to darken only one circle or bubble से केवल एक गोले अथवा बबल को उत्तर पत्रक पर नीले बॉल indicating the correct answer on the Answer Sheet using BLUE च्चाइंट पेन से गहरा करना है । BALL POINT PEN. OMR उत्तर पत्रक इस परीक्षा पुस्तिका के अन्दर रखा है । जब आपको
  • परीक्षा पुस्तिका खोलने को कहा जाए, तो उत्तर पत्र निकाल कर you are directed to open the Test Booklet, take out the Answer Sheet and fill in the particulars carefully with blue ध्यान से केवल नीले बॉल पॉइंट पेन से बिबरण भरें । ball point pen only. प्रत्येक गलत उत्तर के लिए प्रश्न अंक का 1/3 भाग काटा जायेगा । गलत
  • 1/3 part of the mark(s) of each question will be उत्तर से तात्पर्य अश्वद्ध उत्तर अथवा किसी भी प्रश्न के एक से अधिक deducted for each wrong answer. A wrong answer means उत्तर से है ।
  • किसो भी प्रश्न से संबंधित गोले या बबल को खालो छोड़ना an incorrect answer or more than one answers for any गलत उत्तर नहीं माना जायेगा । question. Leaving all the relevant circles or bubbles of any मोबाइल फोन अथवा इलेक्टोनिक यंत्र का परीक्षा हॉल में प्रयोग पूर्णतया
  • question blank will not be considered as wrong answer. वर्जित है ।
  • यदि किसी अभ्यर्थों के पास ऐसी कोई बर्जित सामग्री Mobile Phone or any other electronic gadget in the
  • मिलतो हे तो उसके विरुद्ध आयोग द्वारा नियमानुसार कार्यवाही की examination hall is strictly prohibited. A candidate found जायेगी । with any of such objectionable material with him/her will be कृपया अपना रोल नम्बर ओ.एम.आर. पत्रक पर सावधानीपूर्वक सही strictly dealt as per rules. Please correctly fill your Roll Number in O.M.R. Sheet. भरें ।
  • गलत अथवा अपूर्ण रोल नम्बर भरने पर 5 अंक कुल प्राप्तांकों में
  • 5 Marks can be deducted for filling wrong or incomplete Roll से काटे जा सकते हैं । Number.
  • यदि किसी प्रश्न में किसी प्रकार की कोई मुद्रण या तथ्यात्मक प्रकार को
  • If there is any sort of ambiguity/mistake either of printing or त्रुटि हो तो प्रश्न के हिन्दी तथा अंग्रेजी रूपान्तरों में से अंग्रेजी रूपान्तर factual nature then out of Hindi and English Version of the मान्य होगा. question, the English Version will be treated as standard. चेतावनी : अगर कोई अभ्यर्थी नकल करते पकड़ा जाता है या उसके पास Warning : If a candidate is found copying or if any unauthorized से कोई अनचिकृत सामग्री पाई जाती है, तो उस अभ्यर्थी के विरुद्ध पुलिस में material is found in his/her possession, F.I.R. would be lodged प्राथमिको दर्ज कराते हुए विविध नियमों-प्रावधानों के तहत कार्यवाही की against him/her in the Police Station and he/she would liable to be जाएगी ।
  • साथ ही विभाग ऐसे अभ्यर्थी को भविष्य में होने वाली विभाग की prosecuted. Department may also debar him/her permanently समस्त परीक्षाओं से विवर्जित कर सकता है । from all future examinations. इस परीक्षा पुस्तिका को तब तक न खोलें जब तक कहा न जाए । Do not open this Test Booklet until you are asked to do so. O

  • The OMR Answer Sheet is inside this Test Booklet. When

Questions (page 2)

Q1. For the precipitation of IIIrd group members NH4Cl is added before the addition of NH4OH. The reason is:

  • (1) OH- आयन की सान्द्रता को कम करना ।
    to reduce the concentration of OH- ion.
  • (2) C/ आयन की सान्द्रता को बढ़ाना ।
    to increase the concentration of CΓ ion-
  • (3) OH- आयन की सान्द्रता को बढ़ाना ।
    to increase the concentration of OH- ion.
  • (4) F आयन के व्यतिकरण को रोकना ।
    to stop the interference of F- ion.

Q2. Tollen's reagent is used for the analysis of which functional group?

  • (1) ऐल्डिहाइड
    Aldehyde
  • (2) कीटोन
    Ketone
  • (3) एस्टर
    Ester
  • (4) फ़ीनॉल
    Phenol

Q3. Formula of sodium nitropruside is:

  • (1) Na2[Fe(CN)_5NO]
  • (2) Na3[Fe(CN)_4NO_2]
  • (3) Na2[Fe(CN)_5NO_2]
  • (4) Na2[Fe(CN)_4NO]

Q4. Which functional group can be detected from Iso-cyanide test?

  • (1) - NO2
  • (2) - CONH2
  • (3) - NH2
  • (4) - CN

Q5. In analysis of cations of Vth group crimson red flame confirms the presence of which ion?

  • (1) Ba2+
  • (2) Sr2+
  • (4) Ca2+

Q6. For the precipitation of IIIrd group members NH4Cl is added before the addition of NH4OH. The reason is:

  • (1) to reduce the concentration of OH- ion.
  • (2) to increase the concentration of CΓ ion-
  • (3) to increase the concentration of OH- ion.
  • (4) to stop the interference of F- ion.

Q7. Tollen's reagent is used for the analysis of which functional group?

  • (1) Aldehyde
  • (2) Ketone
  • (3) Ester
  • (4) Phenol

Q8. Formula of sodium nitropruside is:

  • (1) Na2[Fe(CN)_5NO]
  • (2) Na3[Fe(CN)_4NO_2]
  • (3) Na2[Fe(CN)_5NO_2]
  • (4) Na2[Fe(CN)_4NO]

Q9. Which functional group can be detected from Iso-cyanide test?

  • (1) - NO2
  • (2) - CONH2
  • (3) - NH2
  • (4) - CN

Q10. In analysis of cations of Vth group crimson red flame confirms the presence of which ion?

  • (1) Ba2+
  • (2) Sr2+
  • (4) Ca2+

Question paper preview

Scanned pages 1–2 for reference. Download the official PDF for the full paper.

Page 1
Sr. Scientific Officer 2019 Chemistry Division question paper page 1 instructions scan PDF download RPSC
Page 2
Sr. Scientific Officer 2019 Chemistry Division question paper page 1 instructions scan PDF download RPSC

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Frequently asked questions

What is the exam name and year?

The exam name is Sr. Scientific Officer, and the year is 2019.

Which conducting body organized this exam?

The exam was conducted by RPSC (Rajasthan Public Service Commission).

What is the subject of this question paper?

The subject is Chemistry Division.

How many questions are there in the paper?

There are 100 questions in the booklet.

What is the maximum marks for the exam?

The maximum marks are 100.

What is the time duration allowed for the exam?

The time allowed is 2.00 hours.

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