TNPSC Group 1 Mock Test 2025 – Free Online Practice Test Series

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 and also for the exam dates 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 before starting their preparation. And it is mandatory that, they should attempt mock tests to test the marks scored after preparations.

TNPSC Group 1 Free Mock Test 2025

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.  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.

Question 1- Monochromatic light of wavelength 589 nm is incident on a water surface having a refractive index of 1.33.  Find the velocity of light in water.

A- 3 x 10 8 ms -1

B- 332 ms-1

C- 280 ms-1

D- 2.25 x 108 ms-1

Question 2 – The colour light emitted by LED depends on

A- it’s reverse bias- அதன் பின்னோக்கு சார்பு

B- its forward bias- அதன் முன்னோக்கு சார்பு

C- the amount of forwarding current- முன்னோக்கு மின்னோட்ட அளவு

D- the type of semiconductor material- குறைகடத்தி பொருளின் வகை

Question 3 – Which is called “Aqua fortis?”

A- H2SO4

B- HNO3

C- HCI

D- H3PO4

Question 4 – Insectivorous plants are not able to synthesize enough protein due to the deficiency of

A- Hydrogen- ஹைட்ரஜன்

B- Carbon- கார்பன்

C- Nitrogen- நைட்ரஜன்

D- Oxygen- ஆக்சிஜன்

Question 5 – The total amount of energy released from one molecule of glucose on oxidation is about

A- 2600 kJ

B- 2300 kJ

C- 2900 kJ

D- 2500 kJ

Question 6 – Which is known as “Sundew Plant?”

A- Cuscuta- கஸ்குட்டா

B- Drosera- ட்ரஸீரா

C- Vanda- வாண்டா

D- Viscum- விஸ்கம்

Question 7 – A Conductor of length 50 cm carrying of 5 A is placed perpendicular to a   magnetic field of induction 2 x 10-3 T. Find the force on the conductor

A- 5 x 10-3 N

B- 3 x 103 N

C- 4.9 x 103 N

D- 5 x 103 N

Question 8 – Which of the following weights the most?

A- One mole of water- ஒரு மோல் நீர்

B- One mole of Sodium- ஒரு மோல் சோடியம்

C- One molecule of H2SO4- ஒரு மூலக்கூறு H2SO4

D- One gram-atom of nitrogen- ஒரு கிராம் அணு நைட்ரஜன்

Question 9 – The elements like silicon, tellurium and germanium can be purified by

A- Electrolytic refining- மின்னாற் தூய்மையாக்கல்

B- Mond’s process- மாண்ட் முறை

C- Zone refining- துருவமுனைத் தூய்மையாக்கல்

D- Pattinson’s process- பாட்டின்சன் முறை

Question 10 – _________ is the basic unit of classification.

A- Division- பிரிவு

B- Family- குடும்பம்

C- Class- வகுப்பு

D- Species- சிற்றினம்

Question 11 – Who coined the term “Biosystematic?”

A- Bentham and Hooker- பெந்தம் மற்றும் ஹீக்கர்

B- Camp and Gily- கேம்ப் மற்றும் கில்லி

C- Watson and Crick- வாட்சன் மற்றும் கிரிக்

D- Garner and Allard- கார்னர் மற்றும் ஆலார்டு

Question 12 – Bacterial diseases syphilis is caused by

A- Vibrio Cholerae- விப்ரியோ காலரே

B- Treponema pallidium- டிரிபோனிமா பாலிடம்

C- Neisseria gonorrhoea- நிஸ்சேரியா கொனோரியா

D- Yersinia pestis- எர்சினியா பெஸ்டிஸ்

Question 13 – Which hormone is called as fight, flight and fright hormone?

A- Epinepherine- எபிநெஃபரின்

B- Glucagon- குளுக்கோகான்

C- Thyroxine- தைராக்ஸின்

D- Vasopressin- வாஸோப்பிரஸ்ஸின

Question 14 – Who has developed and demonstrated the first nuclear reactor in the year 1942?

A- Bhor and Wheeler- போர் மற்றும் வீலர்

B- Enrico Fermi- என்ரிகோ ஃபெர்மி

C- Albert Einstein- ஆல்பர்ட் ஐன்ஸ்டீன்

D-Bhor and Mottleson- போர் மற்றும் மோட்டல்சன்

Question 15 – The First ionization potential of Na, Mg, Al and Si are in the order

A-Na > Mg > Al > Si

B-Si > Al > Mg > Na

C- Na < Al < Mg < Si

D- Si > Mg > Al > Na

TNPSC Group 1 Online Mock Test 2025

To strengthen your TNPSC exam preparation, practicing mock tests is essential. Entri App offers TNPSC-specific mock tests 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.

• TNPSC Group 1 Free Mock Test PDF

TNPSC Group 1 2025 Previous Question Papers

When you are preparing for the exams with the above-given books, make sure you don’t waste time by reading the whole material. Reading the whole text will not be proper from an exam point of view. Pick out the relevant topics and contents from the contents page. Locate the area to be focused. Highlight the important areas to read and points to be remembered. Make a note for yourself from the text. Given below, we are sharing the important specifications of TNPSC Group 1 2025 Previous Question Papers. TNPSC Group 1 question paper 2025 will be available through the official website created by the organisation. TNPSC Group 1 previous year question paper can also be downloaded from the same website.

Prelims Previous Paper PDFs

• 2021 – Preliminary GS
• 2019 – Prelims
• 2017 – Prelims
• 2015 TNPSC Group 1 Preliminary Question paper
• 2014 TNPSC Group 1 Preliminary Question paper

Mains Previous Papers PDFs

• 2019 – Paper I – General Studies
• 2019 – Paper-II – General Studies
• 2019 – Paper III – General Studies
• 2011 – Paper I – General Studies
• 2011 – Paper-II – General Studies
• General Studies & Tamil

Without a doubt, previous year’s question papers are good resources for competitive examinations. Here, candidates can avail themselves of the previous papers, not merely the PDF, but can attempt questions online and check their scores. Also, know about the areas to be focused on and improved. Practice the mock tests, prepared by experts according to the latest syllabus.  Get Live model exams to make a feel of competitive examination. Attempt exams and compete with other aspirants. Know your rank, marks, and weaker topics yet to be improved. Focus and experiment on preparation strategy to improve the scores!