{"id":16612,"date":"2020-01-25T20:40:23","date_gmt":"2020-01-25T15:10:23","guid":{"rendered":"https:\/\/entri.app\/blog\/?p=16612"},"modified":"2025-10-14T11:37:29","modified_gmt":"2025-10-14T06:07:29","slug":"tnpsc-group-1-mock-test","status":"publish","type":"post","link":"https:\/\/entri.app\/blog\/tnpsc-group-1-mock-test\/","title":{"rendered":"TNPSC Group 1 Mock Test 2025 \u2013 Free Online Practice Test Series"},"content":{"rendered":"

Tamil Nadu PSC will be releasing the Combined Civil Services Group 1 2025 Notification is out. And, the descriptive mains written examination date is announced for the direct recruitment to the vacancies included in Group 1 Services CCE 2025. Aspirants can follow our page for the TNPSC Group 1 notification 2025<\/a>\u00a0and also for the exam dates<\/a> and also attempt the TNPSC Group 1 Mock Test 2025 – Free Online. TNPSC Group 1 selection process will be held in three levels Preliminary Exam, Mains Exam and Interview. Candidates should follow the exam pattern for the Prelims and Mains exam, the remark distribution, topics to be focused on, and the whole syllabus<\/a> before starting their preparation. And it is mandatory that, they should attempt mock tests to test the marks scored after preparations.<\/p>\n

TNPSC Group 1 <\/strong>Free Mock Test 2025<\/b><\/h2>\n

Check out the available mock tests series for one of the most prestigious exams of Tamil Nadu PSC – Combined Civil Services Group 1 Services 2025. Entri will provide you with the TNPSC Group 1 mock test 2025 free online package in a single subscription including Mini mocks consisting of 50 multiple-choice questions. There are 25 sets of mock tests for the candidate to boost their sectional knowledge.\u00a0 Although it is having fewer questions, there will be negative marking and time limit. After the attempt, candidates can go through the exam analytics and the performance level. This facility will be available for all the below-mentioned test series. Now attempt a mini TNPSC Group 1 live mock test and also practice more questions to ace your preparations.<\/p>\n

Question 1- Monochromatic light of wavelength 589 nm is incident on a water surface having a refractive index of 1.33.\u00a0 Find the velocity of light in water.<\/strong><\/p>\n

A- 3 x 10 8 ms -1<\/span><\/p>\n

B- 332 ms-1<\/span><\/p>\n

C- 280 ms-1<\/span><\/p>\n

D- 2.25 x 108 ms-1<\/span><\/p>\n

Question 2 – The colour light emitted by LED depends on<\/strong><\/p>\n

A- it’s reverse bias- \u0b85\u0ba4\u0ba9\u0bcd \u0baa\u0bbf\u0ba9\u0bcd\u0ba9\u0bcb\u0b95\u0bcd\u0b95\u0bc1 \u0b9a\u0bbe\u0bb0\u0bcd\u0baa\u0bc1<\/span><\/p>\n

B- its forward bias- \u0b85\u0ba4\u0ba9\u0bcd \u0bae\u0bc1\u0ba9\u0bcd\u0ba9\u0bcb\u0b95\u0bcd\u0b95\u0bc1 \u0b9a\u0bbe\u0bb0\u0bcd\u0baa\u0bc1<\/span><\/p>\n

C- the amount of forwarding current- \u0bae\u0bc1\u0ba9\u0bcd\u0ba9\u0bcb\u0b95\u0bcd\u0b95\u0bc1 \u0bae\u0bbf\u0ba9\u0bcd\u0ba9\u0bcb\u0b9f\u0bcd\u0b9f \u0b85\u0bb3\u0bb5\u0bc1<\/span><\/p>\n

D- the type of semiconductor material- \u0b95\u0bc1\u0bb1\u0bc8\u0b95\u0b9f\u0ba4\u0bcd\u0ba4\u0bbf \u0baa\u0bca\u0bb0\u0bc1\u0bb3\u0bbf\u0ba9\u0bcd \u0bb5\u0b95\u0bc8<\/span><\/p>\n

Question 3 – Which is called \u201cAqua fortis?\u201d<\/strong><\/p>\n

A- H2SO4<\/span><\/p>\n

B- HNO3<\/span><\/p>\n

C- HCI<\/span><\/p>\n

D- H3PO4<\/span><\/p>\n

Question 4 – Insectivorous plants are not able to synthesize enough protein due to the deficiency of<\/strong><\/p>\n

A- Hydrogen- \u0bb9\u0bc8\u0b9f\u0bcd\u0bb0\u0b9c\u0ba9\u0bcd<\/span><\/p>\n

B- Carbon- \u0b95\u0bbe\u0bb0\u0bcd\u0baa\u0ba9\u0bcd<\/span><\/p>\n

C- Nitrogen- \u0ba8\u0bc8\u0b9f\u0bcd\u0bb0\u0b9c\u0ba9\u0bcd<\/span><\/p>\n

D- Oxygen- \u0b86\u0b95\u0bcd\u0b9a\u0bbf\u0b9c\u0ba9\u0bcd<\/span><\/p>\n

Question 5 – The total amount of energy released from one molecule of glucose on oxidation is about<\/strong><\/p>\n

A- 2600 kJ<\/span><\/p>\n

B- 2300 kJ<\/span><\/p>\n

C- 2900 kJ<\/span><\/p>\n

D- 2500 kJ<\/span><\/p>\n

Question 6 – Which is known as \u201cSundew Plant?\u201d<\/strong><\/p>\n

A- Cuscuta- \u0b95\u0bb8\u0bcd\u0b95\u0bc1\u0b9f\u0bcd\u0b9f\u0bbe<\/span><\/p>\n

B- Drosera- \u0b9f\u0bcd\u0bb0\u0bb8\u0bc0\u0bb0\u0bbe<\/span><\/p>\n

C- Vanda- \u0bb5\u0bbe\u0ba3\u0bcd\u0b9f\u0bbe<\/span><\/p>\n

D- Viscum- \u0bb5\u0bbf\u0bb8\u0bcd\u0b95\u0bae\u0bcd<\/span><\/p>\n

Question 7 – A Conductor of length 50 cm carrying of 5 A is placed perpendicular to a \u00a0 magnetic field of induction 2 x 10-3 T. Find the force on the conductor<\/strong><\/p>\n

A- 5 x 10-3 N<\/span><\/p>\n

B- 3 x 103 N<\/span><\/p>\n

C- 4.9 x 103 N<\/span><\/p>\n

D- 5 x 103 N<\/span><\/p>\n

Question 8 – Which of the following weights the most?<\/strong><\/p>\n

A- One mole of water- \u0b92\u0bb0\u0bc1 \u0bae\u0bcb\u0bb2\u0bcd \u0ba8\u0bc0\u0bb0\u0bcd<\/span><\/p>\n

B- One mole of Sodium- \u0b92\u0bb0\u0bc1 \u0bae\u0bcb\u0bb2\u0bcd \u0b9a\u0bcb\u0b9f\u0bbf\u0baf\u0bae\u0bcd<\/span><\/p>\n

C- One molecule of H2SO4- \u0b92\u0bb0\u0bc1 \u0bae\u0bc2\u0bb2\u0b95\u0bcd\u0b95\u0bc2\u0bb1\u0bc1 H2SO4<\/span><\/p>\n

D- One gram-atom of nitrogen- \u0b92\u0bb0\u0bc1 \u0b95\u0bbf\u0bb0\u0bbe\u0bae\u0bcd \u0b85\u0ba3\u0bc1 \u0ba8\u0bc8\u0b9f\u0bcd\u0bb0\u0b9c\u0ba9\u0bcd<\/span><\/p>\n

Question 9 – The elements like silicon, tellurium and germanium can be purified by<\/strong><\/p>\n

A- Electrolytic refining- \u0bae\u0bbf\u0ba9\u0bcd\u0ba9\u0bbe\u0bb1\u0bcd \u0ba4\u0bc2\u0baf\u0bcd\u0bae\u0bc8\u0baf\u0bbe\u0b95\u0bcd\u0b95\u0bb2\u0bcd<\/span><\/p>\n

B- Mond\u2019s process- \u0bae\u0bbe\u0ba3\u0bcd\u0b9f\u0bcd \u0bae\u0bc1\u0bb1\u0bc8<\/span><\/p>\n

C- Zone refining- \u0ba4\u0bc1\u0bb0\u0bc1\u0bb5\u0bae\u0bc1\u0ba9\u0bc8\u0ba4\u0bcd \u0ba4\u0bc2\u0baf\u0bcd\u0bae\u0bc8\u0baf\u0bbe\u0b95\u0bcd\u0b95\u0bb2\u0bcd<\/span><\/p>\n

D- Pattinson\u2019s process- \u0baa\u0bbe\u0b9f\u0bcd\u0b9f\u0bbf\u0ba9\u0bcd\u0b9a\u0ba9\u0bcd \u0bae\u0bc1\u0bb1\u0bc8<\/span><\/p>\n

Question 10 – _________ is the basic unit of classification.<\/strong><\/p>\n

A- Division- \u0baa\u0bbf\u0bb0\u0bbf\u0bb5\u0bc1<\/span><\/p>\n

B- Family- \u0b95\u0bc1\u0b9f\u0bc1\u0bae\u0bcd\u0baa\u0bae\u0bcd<\/span><\/p>\n

C- Class- \u0bb5\u0b95\u0bc1\u0baa\u0bcd\u0baa\u0bc1<\/span><\/p>\n

D- Species- \u0b9a\u0bbf\u0bb1\u0bcd\u0bb1\u0bbf\u0ba9\u0bae\u0bcd<\/span><\/p>\n

Question 11 – Who coined the term \u201cBiosystematic?\u201d<\/strong><\/p>\n

A- Bentham and Hooker- \u0baa\u0bc6\u0ba8\u0bcd\u0ba4\u0bae\u0bcd \u0bae\u0bb1\u0bcd\u0bb1\u0bc1\u0bae\u0bcd \u0bb9\u0bc0\u0b95\u0bcd\u0b95\u0bb0\u0bcd<\/span><\/p>\n

B- Camp and Gily- \u0b95\u0bc7\u0bae\u0bcd\u0baa\u0bcd \u0bae\u0bb1\u0bcd\u0bb1\u0bc1\u0bae\u0bcd \u0b95\u0bbf\u0bb2\u0bcd\u0bb2\u0bbf<\/span><\/p>\n

C- Watson and Crick- \u0bb5\u0bbe\u0b9f\u0bcd\u0b9a\u0ba9\u0bcd \u0bae\u0bb1\u0bcd\u0bb1\u0bc1\u0bae\u0bcd \u0b95\u0bbf\u0bb0\u0bbf\u0b95\u0bcd<\/span><\/p>\n

D- Garner and Allard- \u0b95\u0bbe\u0bb0\u0bcd\u0ba9\u0bb0\u0bcd \u0bae\u0bb1\u0bcd\u0bb1\u0bc1\u0bae\u0bcd \u0b86\u0bb2\u0bbe\u0bb0\u0bcd\u0b9f\u0bc1<\/span><\/p>\n

Question 12 – Bacterial diseases syphilis is caused by<\/strong><\/p>\n

A- Vibrio Cholerae- \u0bb5\u0bbf\u0baa\u0bcd\u0bb0\u0bbf\u0baf\u0bcb \u0b95\u0bbe\u0bb2\u0bb0\u0bc7<\/span><\/p>\n

B- Treponema pallidium- \u0b9f\u0bbf\u0bb0\u0bbf\u0baa\u0bcb\u0ba9\u0bbf\u0bae\u0bbe \u0baa\u0bbe\u0bb2\u0bbf\u0b9f\u0bae\u0bcd<\/span><\/p>\n

C- Neisseria gonorrhoea- \u0ba8\u0bbf\u0bb8\u0bcd\u0b9a\u0bc7\u0bb0\u0bbf\u0baf\u0bbe \u0b95\u0bca\u0ba9\u0bcb\u0bb0\u0bbf\u0baf\u0bbe<\/span><\/p>\n

D- Yersinia pestis- \u0b8e\u0bb0\u0bcd\u0b9a\u0bbf\u0ba9\u0bbf\u0baf\u0bbe \u0baa\u0bc6\u0bb8\u0bcd\u0b9f\u0bbf\u0bb8\u0bcd<\/span><\/p>\n

Question 13 – Which hormone is called as fight, flight and fright hormone?<\/strong><\/p>\n

A- Epinepherine- \u0b8e\u0baa\u0bbf\u0ba8\u0bc6\u0b83\u0baa\u0bb0\u0bbf\u0ba9\u0bcd<\/span><\/p>\n

B- Glucagon- \u0b95\u0bc1\u0bb3\u0bc1\u0b95\u0bcd\u0b95\u0bcb\u0b95\u0bbe\u0ba9\u0bcd<\/span><\/p>\n

C- Thyroxine- \u0ba4\u0bc8\u0bb0\u0bbe\u0b95\u0bcd\u0bb8\u0bbf\u0ba9\u0bcd<\/span><\/p>\n

D- Vasopressin- \u0bb5\u0bbe\u0bb8\u0bcb\u0baa\u0bcd\u0baa\u0bbf\u0bb0\u0bb8\u0bcd\u0bb8\u0bbf\u0ba9<\/span><\/p>\n

Question 14 – Who has developed and demonstrated the first nuclear reactor in the year 1942?<\/strong><\/p>\n

A- Bhor and Wheeler- \u0baa\u0bcb\u0bb0\u0bcd \u0bae\u0bb1\u0bcd\u0bb1\u0bc1\u0bae\u0bcd \u0bb5\u0bc0\u0bb2\u0bb0\u0bcd<\/span><\/p>\n

B- Enrico Fermi- \u0b8e\u0ba9\u0bcd\u0bb0\u0bbf\u0b95\u0bcb \u0b83\u0baa\u0bc6\u0bb0\u0bcd\u0bae\u0bbf<\/span><\/p>\n

C- Albert Einstein- \u0b86\u0bb2\u0bcd\u0baa\u0bb0\u0bcd\u0b9f\u0bcd \u0b90\u0ba9\u0bcd\u0bb8\u0bcd\u0b9f\u0bc0\u0ba9\u0bcd<\/span><\/p>\n

D-Bhor and Mottleson- \u0baa\u0bcb\u0bb0\u0bcd \u0bae\u0bb1\u0bcd\u0bb1\u0bc1\u0bae\u0bcd \u0bae\u0bcb\u0b9f\u0bcd\u0b9f\u0bb2\u0bcd\u0b9a\u0ba9\u0bcd<\/span><\/p>\n

Question 15 – The First ionization potential of Na, Mg, Al and Si are in the order<\/strong><\/p>\n

A-Na > Mg > Al > Si<\/span><\/p>\n

B-Si > Al > Mg > Na<\/span><\/p>\n

C- Na < Al < Mg < Si<\/span><\/p>\n

D- Si > Mg > Al > Na<\/span><\/p>\n

TNPSC Group 1 Online Mock Test 2025<\/b><\/p>\n

To strengthen your TNPSC exam preparation, practicing mock tests is essential. Entri App offers TNPSC-specific mock tests<\/strong> designed by subject experts to help you experience the real exam environment. Each test follows the latest syllabus and pattern, providing detailed performance analysis and explanations for every question. Regular mock test practice helps improve accuracy, time management, and confidence before the actual exam.<\/p>\n