Home - Mock Test - CHEMISTRY (Part-V) (Railway)Mock TestCHEMISTRY (Part-V) (Railway)by GouravUpdated On: April 10, 2025 Total Questions: 3021. The conversion of ethanol to ethanoic acid is an example of which of the following reaction? [RRB Group 'D' CBT Exam, 22.08.2022 (Shift-III)](1) Combustion reaction(2) Addition reaction(3) Oxidation reaction(4) Substitution reactionCorrect Answer: (3) Oxidation reaction22. In the given reaction,__________ acts as a reducing agent. [RRB Group 'D' CBT Exam, 22.08.2022 (Shift-III)]Fe₂O₃ + 3CO → 2Fe + 3CO₂(1) Fe(2) CO₂(3) Fe₂O₃(4) COCorrect Answer: (3) Fe₂O₃23. What is the correct order of metallic character of the following metals? [RRB Group 'D' CBT Exam, 22.08.2022 (Shift-III)](1) Na < Mg < Cs < Ba(2) Cs < Ba < Na < Mg(3) Mg < Na < Ba < Cs(4) Ba < Cs < Mg < NaCorrect Answer: (3) Mg < Na < Ba < Cs24. Consider the below statements and identify the correct answer. [RRB Group 'D' CBT Exam, 22.08.2022 (Shift-III)]Statement I: Ionic compounds are generally brittle and break into pieces when pressure is applied.Statement II: Ionic compounds have low melting and boiling points.(1) Both the statements are true.(2) Statement-II is true, and Statement-I is false.(3) Both the statement are false.(4) Statement-I is true, and Statement-II is false.Correct Answer: (4) Statement-I is true, and Statement-II is false.25. Consider the statements given below and identify the correct answer. [RRB Group 'D' CBT Exam, 22.08.2022 (Shift-III)]Statement I: Washing soda is produced from sodium chloride.Statement II: It attacks dirt and grease to form water soluble products, which are then washed away on rinsing with water.(1) Both the statements are true.(2) Statement-II is true, and Statement-I is false.(3) Both the statements are false.(4) Statement-I is true, and Statement-II is false.Correct Answer: (2) Statement-II is true, and Statement-I is false.26. Which of the following triads is NOT a Dobereiner's triad? [RRB Group 'D' CBT Exam, 22.08.2022 (Shift-III)](i) Li, Na, K(ii) Ca, Sr, Ba(iii) N, P, Sb(iv) Cl, Br, I(1) Only iii(2) Only i(3) Only ii(4) Only ivCorrect Answer: (1) Only iii27. In the reaction ZnO + C → Zn + CO: [RRB Group 'D' CBT Exam, 22.08.2022 (Shift-III)](1) ZnO is reduced to Zn(2) Zn does not undergo redox reaction.(3) ZnO is oxidized to Zn(4) Carbon is reduced to COCorrect Answer: (1) ZnO is reduced to Zn28. The insoluble substance formed in a solution during a chemical reaction is known as _______. [RRB Group 'D' CBT Exam, 23.08.2022 (Shift-I)](1) soluble salt(2) aqueous solution(3) residue(4) precipitateCorrect Answer: (4) precipitate29. Consider the below statements and identify the correct answer. [RRB Group 'D' CBT Exam, 23,08.2022 (Shift-I)]Statement-I: Most carbon compounds are poor conductors of electricity.Statement II: Carbon compounds have low melting and boiling points.(1) Both the statements are true(2) Both the statements are false.(3) Statement-II is true, and Statement-I is false(4) Statement-I is true, and Statement-II is false.Correct Answer: (1) Both the statements are true30. Consider the statements below and identify the correct answer. [RRB Group 'D' CBT Exam, 23.08.2022 (Shift-I)]Statement- I: Modern periodic table has 18 vertical columns known as groups.Statement-II: Modern periodic table has 7 horizontal rows known as periods.(1) Both statements are incorrect(2) Both statements are correct.(3) Statement II is correct. statement I is incorrect.(4) Statemente 1 is correct. statement II is incorrect.Correct Answer: (2) Both statements are correct.Submit Quiz« Previous123Gourav
