Hardest GK Questions with Answers Latest 167+ MCQs 2025

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Mock Test on GK for Students

Quick Quiz

Birthday of which personality is celebrated every year on 14th April?

(a) Dr Sarvepalli Radhakrishnan

(b) Dr BR Ambedkar

(d) Dr APJ Abdul Kalam

Option b – Dr BR Ambedkar

‘National Civil Services Day is observed on

(a) 20th April

(b) 21st April

(d) 30th April

Option b – 21st April

Which of the following is not correctly matched?

(a) Army Day – 15th January

(b) Martyrs’ Day – 31st January

(d) Coconut Day – 2nd August

Option c – Earth Day – 22nd April

In India, National Panchayati Day is celebrated on which date?

(a) 26th January

(b) 2nd October

(d) 24th April

Option d – 24th April

When are ‘Common Service Centre Divas’ observed?

(a) 14th July

(b) 16th July

(d) 4th August

Option b – 16th July

National Handloom Day is observed on

(a) 7th June

(b) 17th July

(d) 17th September

Option c – 7th August

When is ‘Quit India Day’ celebrated?

(a) September 8th

(b) August 19th

(d) None of these

Option c – August 9th

Which date is National Sports Day observed in India?

(a) 29th August

(b) 4th May

(d) 5th July

Option a – 29th August

Teachers’ Day is observed every year in India on

(a) 5th September

(b) 2nd October

(d) 25th December

Option a – 5th September

When is ‘Hindi Diwas’ celebrated?

(a) 12th October

(b) 19th October

(d) 7th September

Option c – 14th September

‘National Education Day is celebrated on

(a) 12th November

(b) 11th November

(d) 29th October

Option b – 11th November

When is ‘Navy Day’ celebrated every year in India?

(a) 29th December

(b) 4th December

(d) 12th January

Option b – 4th December

15th Pravasi Bharatiya Diwas in January 2019 was held in which city?

(a) Varanasi

(b) Vadodara

(d) Pune

Option a – Varanasi

Every year Women’s Day is celebrated on 13th February in memory of

(a) Indira Gandhi

(b) Kamla Nehru

(d) Lakshmi Bai

Option c – Sarojini Naidu

On which date National Science Day is celebrated?

(a) 5th May

(b) 15th March

(d) 28th February

Option d – 28th February

Chaitra 1 of the national calendar based on the Saka Era corresponds to which one of the following dates of the Gregorian calendar in a normal year of 395 days?

(a) 22nd March (or 21st March)

(b) 15th May (or 16th May)

(d) 21st April (or 20th April)

Option a – 22nd March (or 21st March)

‘National Voter’s Day’ is celebrated on which date?

(a) 15th January

(b) 25th January

(d) 25th February

Option b – 25th January

When is Data Protection Day observed?

(a) 28th January

(b) 30th December

(d) 20th February

Option a – 28th January

National Youth Day is celebrated on which date

(a) 15th January

(b) 9th January

(d) 12th January

Option d – 12th January

‘Army Day’ is celebrated ……… in India in recognition of Field Marshal KM Cariappa’s taking over as the first Commander-in-Chief of the Indian Army from Sir Francis Butcher in 1948.

(a) 20th January

(b) 12th January

(d) 26th December

Option c – 15th January

23rd January is celebrated as the birthday of

(a) Guru Govind Singh

(b) Subhash Chandra Bose

(d) Chandra Shekhar Azad

Option b – Subhash Chandra Bose

India celebrated/will celebrate its 70th Constitution Day in

(a) 2020

(b) 2018

(d) 2019

Option d – 2019

In India, the 24th of January is celebrated as

(a) National Girl Child Day

(b) National Farmers Day

(d) National Old Person Day

Option a – National Girl Child Day

Paddy Khaira disease or miniature disease is caused by a deficiency of which element?

(a) Zinc

(b) Copper

(d) Magnesium

Option a – Zinc

Vitell disease of cauliflower is caused by deficiency of which element?

(a) Zinc

(b) Molybdenum

(d) Magnesium

Option b – Molybdenum

Harmlessness of leaves is caused by the deficiency of

(a) Calcium

(b) Magnesium

(d) Copper

Option b – Magnesium

Transpiration occurs-

(a) From the stems

(b) From roots

(d) All pneumatic parts

Option d – All pneumatic parts

What is released in the process of photosynthesis?

(a) Hydrogen

(b) Carbon dioxide

(d) Chlorine

Option c – Oxygen

The rate of photosynthesis is highest-

(a) In purple light

(b) In green light

(d) In red light

Option d – In red light

The rate of photosynthesis is the lowest-

(a) In red light

(b) In blue light

(d) In green light

Option d – In green light

Photosynthesis occurs-

(a) At night

(b) Day and night

(d) Only in the day

Option d – Only in the day

Which gas is necessary for photosynthesis?

(a) Oxygen

(b) Carbon dioxide

(d) Carbon monoxide

Option d – Carbon monoxide

What is the source of oxygen produced during photosynthesis?

(a) Water

(b) Carbon dioxide

(d) Mesophyll cells

Option a – Water

The role of foliage in photosynthesis is-

(a) Absorption of water

(b) Absorption of light

(d) None of these

Option b – Absorption of light

The instrument for respiratory measurement is called-

(a) Potometer

(b) Oximeter

(d) Respirometer

Option a – Potometer

ATP stands for-

(a) Adenosine triphosphate

(b) Adenine triphosphate

(d) Adenosine tetraphosphate

Option a – Adenosine triphosphate

The fruit ripening hormone is-

(a) Gibberellin

(b) Ethylene

(d) Auxin

Option b – Ethylene

Mimosa leaf has speed-

(a) Phototropism

(b) Thigmotropism

(d) Hydrotropism

Option b – Thigmotropism

Turning of shoots towards sunlight is called-

(a) Phototropism

(b) Geotropism

(d) Hydrotropism

Option c – Heliotropism

Who is the most responsible factor for plant diseases?

(a) Mildew

(b) Bacteria

(d) Protozoa

Option a – Mildew

From where is clove, a commonly used spice, obtained?

(a) From the root

(b) Stem

(d) From fruit

Option c – From flower bud

Hashish is obtained from the plant. State from which part of the plant it is obtained.

(a) From leaves

(b) Stems

(d) Male inflorescence

Option d – Male inflorescence

Water is transported in plants through-

(a) Cambium

(b) Phloem

(d) Epidermis

Option c – Xylem

How many essential elements are needed for plant growth?

(a) 6

(b) 10

(d) 21

Option c – 16

Pea plant is-

(a) Herb

(b) Flower

(d) None of these

Option a – Herb

Saffron is produced by

(a) Hibiscus stamens

(b) From the roots of Indigofera

(d) From the parties of Moses

Option c – Style from crocus and style

Clove is a-

(a) Fruit

(b) Dry flower bud

(d) Seed

Option b – Dry flower bud

From which part of the plant can we get coffee?

(a) Flowers

(b) Seeds

(d) Fruits

Option b – Seeds

Poppy is obtained-

(a) Kaufia Arabica

(b) Papaver somniferum

(d) Thia sinensis

Option b – Papaver somniferum

Who receives quinine?

(a) Papaver

(b) Cannabis

(d) Aconitum

Option c – Cinchona

The best source of Vitamin C is-

(a) Lemon

(b) Orange

(d) Chilli

Option c – Amla

Tobacco leaves contain-

(a) Capsaicin

(b) Caulvicin

(d) Aspirin

Option c – Nicotine

The medicine obtained to stop high blood pressure is-

(a) From the caste of digitalis

(b) From Cinchona caste

(d) From the Papaver caste

Option c – Rauwulfia caste

Pulses are a good source of

(a) Protein

(b) Carbohydrate

(d) Cellulose

Option a – Protein

Which vegetable food has the maximum protein?

(a) Gram

(b) Pea

(d) Pigeonpea

Option c – Soybean

Cinnamon obtained from which part of the tree?

(a) Leaf

(b) Stem

(d) Bark

Option d – Bark

Apples and pears have edible portions.

(a) External result

(b) Middle fruit

(d) Fleshy appendages

Option d – Fleshy appendages

The grain of rice is [ Hardest GK Questions with Answers ]

(a) A seed

(b) Algebraic fruit

(d) Embolism

Option b – Algebraic fruit

Which part of a pear is eaten?

(a) Pulp

(b) Core

(d) Pod

Option a – Pulp

Which plant has seed but no fruit?

(a) Reed

(b) Groundnut

(d) Cycus

Option d – Cycus

Potato is related to which family?

(a) Solanaceae

(b) Composite

(d) Crucifery

Option a – Solanaceae

Cotton is related to

(a) Cruciferi

(b) Composite

(d) Renucleus

Option c – Malvaceae

Brinjal is the plant of which family?

(a) Cruciferi

(b) Cucurbitaceae

(d) Malvaceae

Option c – Solanesi

The hereditary name of the cotton plant is-

(a) Crotalaria

(b) Raphenous

(d) Gossypium

Option d – Gossypium

The botanical name of mango is [ Hardest GK Questions with Answers ]

(a) Musa Sapientes

(b) Docus carota

(d) None of these

Option c – Mangifera Indica

The botanical name of the wheat plant is-

(a) Jia Mage

(b) Aurija Sativa

(d) Triticum aestivum

Option d – Triticum aestivum

The botanical name of the tea plant is-

(a) Sinensis thia

(b) Sinensis

(d) Kaufia arabica

Option c – Thia sinensis

Who is the author of the book ‘A Secular Agenda’?

(a) Mahatma Gandhi

(b) Graham Greene

(d) Dushyant Sharma

Option c – Arun Shourie

The author of the book ‘World of All Human Rights’ is

(a) Chetan Bhagat

(b) Vishnu Sahai

(d) Arun Jaitley

Option c – Soli J Sorabji

Who amongst the following is the author of the book Termites in the Trading System’?

(a) MS Swaminathan

(b) Jagdish Bhagwati

(d) M Chelapati Rao

Option b – Jagdish Bhagwati

Who among the following is the author of ‘Interlinking of Indian Rivers’?

(a) P V Manoranjan Rao

(b) JB Kripalani

(d) Radhakant Bharati

Option d – Radhakant Bharati

The famous book ‘An Unsuitable Boy is written by

(a) Satrughan Sinha

(b) Shahrukh Khan

(d) Khushwant Singh

Option c – Karan Johar

Who of the following is the author of the book ‘Imaging India: Ideas for the New Century?

(a) Arvind Adiga

(b) MJ Akbar

(d) Shashi Tharoor

Option c – Nandan Nilekani

‘And Then One Day: A Memoir is an autobiography of

(a) Kamal Hasan

(b) Shahrukh Khan

(d) Karan Johar

Option c – Naseeruddin Shah

The book named ‘Don’t Laugh: We are Police’, was composed by

(a) Bishan Lal Vohra (IGP)

(b) KPS Gill (DGP)

(d) None of the above

Option a – Bishan Lal Vohra (IGP)

Who is the author of ‘A River Sutra’?

(a) VS Naipaul

(b) Nirad C Chaudhari

(d) Vikram Seth

Option c – Gita Mehta

The Immortals of Meluha’ is written by

(a) Aravind Adiga

(b) Arundhati Roy

(d) None of the above

Option c – Amish Tripathi

The book ‘Playing it My Way’ is written by whom?

(a) Boria Majumdar

(b) Indu Aanand

(d) Yashwant Sinha

Option a – Boria Majumdar

The memoir ‘The Test of My Life is written by

(a) Yuvraj Singh

(b) Rahul Dravid

(d) Kapil Dev

Option a – Yuvraj Singh

Who is the author of the book ‘Golden Girl’?

(a) Sunil Gavaskar

(b) PT Usha

(d) Malleswari

Option b – PT Usha

Who has written the book ‘A Century is Not Enough’?

(a) Sourav Ganguly

(b) Sachin Tendulkar

(d) MS Dhoni

Option a – Sourav Ganguly

Who is the writer of ‘Born Again on the Mountains’?

(a) Ben Bernike

(b) Twinkle Khanna

(d) Arunima Sinha

Option d – Arunima Sinha

Who is the author of the book ‘1 Do What I Do?

(a) Pranab Mukherjee

(b) Raghuram G Rajan

(d) Jagdish Prakash

Option b – Raghuram G Rajan

Who wrote the book ‘Strictly Personal, Mamohan and Gursharan’ which tells the untold story of India’s 14th PM Manmohan Singh and his wife Gulsharan?

(a) Daman Singh

(b) Vir Singh

(d) Mohan Bhandari

Option a – Daman Singh

Global Crisis Recession and Uneven Recovery’ is written by one of the RBI Governors

(a) Subba Rao

(b) Bimal Jalan

(d) Rangarajan

Option c – YV Reddy

Who has written the book ‘India Shastra: Reflections on the Nation in Our Time?

(a) Narendra Modi

(b) Shashi Tharoor

(d) APJ Abdul Kalam

Option b – Shashi Tharoor

Who is the author of the book ‘An Era of Darkness-The British Empire in India’?

(a) Amrish Tripathi

(b) Hamid Ansari

(d) Romesh Dutt

Option c – Shashi Tharoor

The book Pax Indica’ is written by Shashi Tharoor the description of

(a) foreign policy

(b) Indian culture

(d) None of the above

Option a – foreign policy

The Great Indian Novel’ is authored by

(a) Chitra Banerjee

(b) Arvind Adiga

(d) Vikram Seth

Option c – Shashi Tharoor

Who is the author of the book ‘Freedom Behind Bars’?

(a) Kiran Bedi

(b) Jawaharlal Nehru

(d) Nelson Mandela

Option a – Kiran Bedi

The Accidental Prime Minister was written by

(a) PC Parehh

(b) RV Bhasin

(d) Jaswant Singh

Option c – Sanjaya Baru

‘India of our Dreams’ is a book written by

(a) Dr. S Radhakrishnan

(b) Dr. C Subramanian

(d) Dr. Rajendra Prasad

Option c – MV Kamath

Who is the author of the book “Argumentative Indian-writing on Indian History, Culture, and Identity”?

(a) Nirad C Chaudhuri

(b) Amit Chaudhuri

(d) Arundhati Roy

Option c – Amartya Sen

Who of the following authored the book ‘Revolution 2020?

(a) Rupa Pai

(b) Chetan Bhagat

(d) Devdutt Pattnaik

Option b – Chetan Bhagat

Who is the author of ‘One Night @ the Call Centre’?

(a) Vikram Seth

(b) Chetan Bhagat

(d) Robin Sharma

Option b – Chetan Bhagat

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