Mixed GK

Oranges and other citrus fruits are excellent sources of vitamin C (ascorbic acid), providing a significant portion of daily requirements. Gram provides protein, fish offers omega-3 fatty acids and protein, and mango is rich in vitamin A but has less vitamin C than citrus.

Bhai Vir Singh (1872-1957) was a renowned Punjabi poet, novelist, and writer who composed 'Rana Surat Singh,' a famous Punjabi epic poem. He is considered the father of modern Punjabi literature and was also a key figure in the Singh Sabha movement.

Kalidas, one of India's greatest Sanskrit poets and playwrights, composed all his works in Sanskrit. His famous works include Abhijñanasakuntalam, Meghaduta, Kumarasambhava, and Raghuvaṃśa. He lived during the Gupta period (4th-5th century CE) and wrote no works in Urdu, English, or Hindi.

Amrita Pritam (1919-2005) was a renowned Punjabi writer and poet who received the Padma Vibhushan, India's second-highest civilian award, in 2004 for her contributions to literature. She was the first woman to win the Sahitya Akademi Award and is best known for her poem 'Ajj Aakhaan Waris Shah Nu' and novel 'Pinjar'.

S. Gurbaksh Singh (1895-1977) founded and started 'Preet Lari' in 1949, a Punjabi literary magazine that played a significant role in promoting Punjabi literature and culture. It became one of the most influential Punjabi publications of its time.

Alfred Nobel (1833-1896) was a Swedish chemist, engineer, and inventor who invented dynamite. He established the Nobel Prizes in his will, and was born and died in Sweden. He never lived in America, Japan, or Australia.

Paraffin (or aviation turbine fuel/kerosene) is the primary fuel used in jet engines due to its high energy density, low freezing point, and combustion properties suitable for high-altitude flight. Naphtha, petrol, and diesel are not suitable for jet aircraft engines.

Kuldip Nayyar (1923-2018) was a renowned Indian journalist, author, and diplomat who wrote 'Between The Lines,' an autobiographical work published in 2009. The book reflects on his career as a journalist and diplomat, offering insights into Indian politics and media. He was a well-known columnist and former High Commissioner to the UK.

Guru Nanak Dev ji, the founder of Sikhism, was born in 1469 and lived for 70 years. His passing in 1539 CE is well-documented in Sikh historical records. Option A (1539) is correct, while other dates are either before his birth or impossibly late.

Kilowatt (kW) is the standard unit for measuring power, equal to 1000 watts. Power is the rate at which work is done or energy is transferred. Option C is correct. Force is measured in newtons, work in joules, making options A and B incorrect.

The record for the longest single spaceflight belongs to Russian cosmonaut Valeri Polyakov, who spent 437 days aboard the Mir space station from 1994-1995. This record stood for decades. Option B is historically accurate.

Mercury's key property for thermometer use is its uniform thermal expansion - it expands and contracts predictably with temperature changes. This makes it ideal for accurate measurement. Option C is correct. Being a liquid or metal alone (options A and B) isn't sufficient - many substances share those properties.

The sky appears blue due to Rayleigh scattering - sunlight interacts with gas molecules in the atmosphere, and shorter blue wavelengths scatter more than other colors. Option B is correct. This is different from reflection (option A).

The atomic bomb dropped on Hiroshima on August 6, 1945 was codenamed 'Little Boy'. The bomb dropped on Nagasaki was called 'Fat Man'. Option B is correct. The other options are similar-sounding but incorrect.

The Khalsa, the ordained body of initiated Sikhs, was founded by Guru Gobind Singh ji in 1699 during the Vaisakhi festival at Anandpur Sahib. Option A is historically correct. Guru Gobind Singh was the tenth Sikh Guru.

Chinese traveler Hieun Tsang (Xuanzang) spent approximately 14 years in India (630-644 CE) studying Buddhism and gathering knowledge. Option A is historically documented in his travel writings.

The 'Chain of Justice' (Zanjir-i-Adl) was installed by Mughal Emperor Jahangir. It was a golden chain with bells that common people could ring to seek justice directly from the Emperor. Option A is correct.

The Doctrine of Lapse was introduced by Lord Dalhousie, the Governor-General of India from 1848-1856. It allowed the British to annex any princely state where the ruler died without a male heir. Option B is correct.

The Pilgrim Tax, a tax on Hindu pilgrims visiting sacred sites, was abolished by Emperor Akbar as part of his liberal and inclusive religious policies. Option A is correct. Akbar was known for his religious tolerance.

'Chandi di Var' is a composition by Guru Gobind Singh ji, written in praise of the goddess Chandi (a form of Durga). It's part of the Dasam Granth. Option C is correct. Guru Gobind Singh ji was a scholar poet who wrote extensively in Punjabi.

Guru Arjun Dev (1563-1606) was the fifth Sikh Guru and lived during the reign of Emperor Akbar. Shah Hussain (1538-1599) was a famous Sufi poet of the Punjab region who was indeed his contemporary. Both were spiritual figures who promoted tolerance and devotion during the Mughal period.