Hardest GK Questions with Answers. We covered all the Hardest GK Questions with Answers in this post for free so that you can practice well for the exam.
Install our MCQTUBE Android app from the Google Play Store and prepare for any competitive government exams for free.
These types of competitive MCQs appear in the exams like UPSC, State PCS, CDS, NDA, Assistant Commandant, SSC, Railway, Bank, Delhi Police, UPSSC, and other Competitive Examinations, etc. We created all the competitive exam MCQs into several small posts on our website for your convenience.
You will get their respective links in the related posts section provided below.
Related Posts:
Mock Test on GK for Students
Birthday of which personality is celebrated every year on 14th April?
(a) Dr Sarvepalli Radhakrishnan
(b) Dr BR Ambedkar
(c) Sardar Vallabhbhai Patel
(d) Dr APJ Abdul Kalam
Option b – Dr BR Ambedkar
‘National Civil Services Day is observed on
(a) 20th April
(b) 21st April
(c) 25th 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
(c) Earth Day – 22nd April
(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
(c) 21st April
(d) 24th April
Option d – 24th April
When are ‘Common Service Centre Divas’ observed?
(a) 14th July
(b) 16th July
(c) 29th July
(d) 4th August
Option b – 16th July
National Handloom Day is observed on
(a) 7th June
(b) 17th July
(c) 7th August
(d) 17th September
Option c – 7th August
When is ‘Quit India Day’ celebrated?
(a) September 8th
(b) August 19th
(c) August 9th
(d) None of these
Option c – August 9th
Which date is National Sports Day observed in India?
(a) 29th August
(b) 4th May
(c) 17th September
(d) 5th July
Option a – 29th August
Teachers’ Day is observed every year in India on
(a) 5th September
(b) 2nd October
(c) 6th November
(d) 25th December
Option a – 5th September
When is ‘Hindi Diwas’ celebrated?
(a) 12th October
(b) 19th October
(c) 14th September
(d) 7th September
Option c – 14th September
‘National Education Day is celebrated on
(a) 12th November
(b) 11th November
(c) 5th November
(d) 29th October
Option b – 11th November
(a) 29th December
(b) 4th December
(c) 10th December
(d) 12th January
Option b – 4th December
15th Pravasi Bharatiya Diwas in January 2019 was held in which city?
(a) Varanasi
(b) Vadodara
(c) Jaipur
(d) Pune
Option a – Varanasi
Every year Women’s Day is celebrated on 13th February in memory of
(a) Indira Gandhi
(b) Kamla Nehru
(c) Sarojini Naidu
(d) Lakshmi Bai
Option c – Sarojini Naidu
On which date National Science Day is celebrated?
(a) 5th May
(b) 15th March
(c) 5th January
(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)
(c) 31st March (or 30th March)
(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
(c) 15th February
(d) 25th February
Option b – 25th January
When is Data Protection Day observed?
(a) 28th January
(b) 30th December
(c) 27th October
(d) 20th February
Option a – 28th January
National Youth Day is celebrated on which date
(a) 15th January
(b) 9th January
(c) 18th 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
(c) 15th January
(d) 26th December
Option c – 15th January
23rd January is celebrated as the birthday of
(a) Guru Govind Singh
(b) Subhash Chandra Bose
(c) Debendranath Tagore
(d) Chandra Shekhar Azad
Option b – Subhash Chandra Bose
India celebrated/will celebrate its 70th Constitution Day in
(a) 2020
(b) 2018
(c) 2017
(d) 2019
Option d – 2019
In India, the 24th of January is celebrated as
(a) National Girl Child Day
(b) National Farmers Day
(c) National Agricultural 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
(c) Calcium
(d) Magnesium
Option a – Zinc
Vitell disease of cauliflower is caused by deficiency of which element?
(a) Zinc
(b) Molybdenum
(c) Copper
(d) Magnesium
Option b – Molybdenum
Harmlessness of leaves is caused by the deficiency of
(a) Calcium
(b) Magnesium
(c) Manganese
(d) Copper
Option b – Magnesium
Transpiration occurs-
(a) From the stems
(b) From roots
(c) Leaves
(d) All pneumatic parts
Option d – All pneumatic parts
What is released in the process of photosynthesis?
(a) Hydrogen
(b) Carbon dioxide
(c) Oxygen
(d) Chlorine
Option c – Oxygen
The rate of photosynthesis is highest-
(a) In purple light
(b) In green light
(c) In blue 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
(c) In purple light
(d) In green light
Option d – In green light
Photosynthesis occurs-
(a) At night
(b) Day and night
(c) Day or night
(d) Only in the day
Option d – Only in the day
Which gas is necessary for photosynthesis?
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) Carbon monoxide
Option d – Carbon monoxide
What is the source of oxygen produced during photosynthesis?
(a) Water
(b) Carbon dioxide
(c) Chlorophyll
(d) Mesophyll cells
Option a – Water
The role of foliage in photosynthesis is-
(a) Absorption of water
(b) Absorption of light
(c) Absorption of carbon dioxide
(d) None of these
Option b – Absorption of light
The instrument for respiratory measurement is called-
(a) Potometer
(b) Oximeter
(c) Spirometer
(d) Respirometer
Option a – Potometer
ATP stands for-
(a) Adenosine triphosphate
(b) Adenine triphosphate
(c) Adenosine diphosphate
(d) Adenosine tetraphosphate
Option a – Adenosine triphosphate
The fruit ripening hormone is-
(a) Gibberellin
(b) Ethylene
(c) Cytokinin
(d) Auxin
Option b – Ethylene
Mimosa leaf has speed-
(a) Phototropism
(b) Thigmotropism
(c) Chemotropism
(d) Hydrotropism
Option b – Thigmotropism
Turning of shoots towards sunlight is called-
(a) Phototropism
(b) Geotropism
(c) Heliotropism
(d) Hydrotropism
Option c – Heliotropism
Who is the most responsible factor for plant diseases?
(a) Mildew
(b) Bacteria
(c) Virus
(d) Protozoa
Option a – Mildew
From where is clove, a commonly used spice, obtained?
(a) From the root
(b) Stem
(c) From flower bud
(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
(c) Female inflorescence
(d) Male inflorescence
Option d – Male inflorescence
Water is transported in plants through-
(a) Cambium
(b) Phloem
(c) Xylem
(d) Epidermis
Option c – Xylem
How many essential elements are needed for plant growth?
(a) 6
(b) 10
(c) 16
(d) 21
Option c – 16
Pea plant is-
(a) Herb
(b) Flower
(c) Shrub
(d) None of these
Option a – Herb
Saffron is produced by
(a) Hibiscus stamens
(b) From the roots of Indigofera
(c) Style from crocus and style
(d) From the parties of Moses
Option c – Style from crocus and style
Clove is a-
(a) Fruit
(b) Dry flower bud
(c) Vardhi Kalika
(d) Seed
Option b – Dry flower bud
From which part of the plant can we get coffee?
(a) Flowers
(b) Seeds
(c) Leaves
(d) Fruits
Option b – Seeds
Poppy is obtained-
(a) Kaufia Arabica
(b) Papaver somniferum
(c) From Origa Sativa
(d) Thia sinensis
Option b – Papaver somniferum
Who receives quinine?
(a) Papaver
(b) Cannabis
(c) Cinchona
(d) Aconitum
Option c – Cinchona
The best source of Vitamin C is-
(a) Lemon
(b) Orange
(c) Amla
(d) Chilli
Option c – Amla
Tobacco leaves contain-
(a) Capsaicin
(b) Caulvicin
(c) Nicotine
(d) Aspirin
Option c – Nicotine
The medicine obtained to stop high blood pressure is-
(a) From the caste of digitalis
(b) From Cinchona caste
(c) Rauwulfia caste
(d) From the Papaver caste
Option c – Rauwulfia caste
Pulses are a good source of
(a) Protein
(b) Carbohydrate
(c) Fat
(d) Cellulose
Option a – Protein
Which vegetable food has the maximum protein?
(a) Gram
(b) Pea
(c) Soybean
(d) Pigeonpea
Option c – Soybean
Cinnamon obtained from which part of the tree?
(a) Leaf
(b) Stem
(c) Root
(d) Bark
Option d – Bark
Apples and pears have edible portions.
(a) External result
(b) Middle fruit
(c) Endoplasm
(d) Fleshy appendages
Option d – Fleshy appendages
The grain of rice is [ Hardest GK Questions with Answers ]
(a) A seed
(b) Algebraic fruit
(c) Multi-algebraic fruits
(d) Embolism
Option b – Algebraic fruit
Which part of a pear is eaten?
(a) Pulp
(b) Core
(c) Both ‘a’ and ‘b’
(d) Pod
Option a – Pulp
Which plant has seed but no fruit?
(a) Reed
(b) Groundnut
(c) Almonds
(d) Cycus
Option d – Cycus
(a) Solanaceae
(b) Composite
(c) Gamini
(d) Crucifery
Option a – Solanaceae
(a) Cruciferi
(b) Composite
(c) Malvaceae
(d) Renucleus
Option c – Malvaceae
Brinjal is the plant of which family?
(a) Cruciferi
(b) Cucurbitaceae
(c) Solanesi
(d) Malvaceae
Option c – Solanesi
The hereditary name of the cotton plant is-
(a) Crotalaria
(b) Raphenous
(c) Nicotiana
(d) Gossypium
Option d – Gossypium
The botanical name of mango is [ Hardest GK Questions with Answers ]
(a) Musa Sapientes
(b) Docus carota
(c) Mangifera Indica
(d) None of these
Option c – Mangifera Indica
The botanical name of the wheat plant is-
(a) Jia Mage
(b) Aurija Sativa
(c) Hordeum vulgare
(d) Triticum aestivum
Option d – Triticum aestivum
The botanical name of the tea plant is-
(a) Sinensis thia
(b) Sinensis
(c) Thia sinensis
(d) Kaufia arabica
Option c – Thia sinensis
We covered all the hardest gk questions with answers above in this post for free so that you can practice well for the exam.
Check out the latest MCQ content by visiting our mcqtube website homepage.
Also, check out: