MCQ – GK Questions

Answer: Solid

Solids have fixed shape and volume due to strong intermolecular forces holding particles in fixed positions. Liquids have fixed volume but variable shape; gases have neither. Basic concept in matter classification. [[NCERT Chemistry Class 9]]

Answer: Aorta

The aorta is the main artery carrying oxygen-rich blood from the left ventricle to systemic circulation. Pulmonary artery carries deoxygenated blood to lungs. Critical for understanding human physiology. [[NCERT Biology Class 11]]

Answer: Acceleration

Acceleration (a = Δv/Δt) measures how quickly velocity changes. It's a vector quantity with SI unit m/s². Negative acceleration is deceleration. Fundamental in kinematics for physics exams. [[NCERT Physics Class 9]]

Answer: Photovoltaic cells

Photovoltaic (PV) cells in solar panels convert sunlight directly into electricity via the photovoltaic effect. This clean energy technology is promoted under India's National Solar Mission. [[MNRE Reports, NCERT Geography Class 11]]

Answer: Mercury

Mercury (Hg) is the only metal liquid at standard room temperature (25°C) due to weak metallic bonding. It's used in thermometers, barometers, and electrical switches. Bromine is the only non-metal liquid at room temperature. [[NCERT Chemistry Class 10]]

Answer: Scurvy

Scurvy results from Vitamin C deficiency, causing weakened collagen synthesis, leading to bleeding gums, joint pain, and poor wound healing. Citrus fruits are rich sources of Vitamin C. Important for health-related exam questions. [[NCERT Biology Class 11]]

Answer: Vacuum

Sound requires a medium (solid, liquid, or gas) to propagate as mechanical waves. In vacuum, there are no particles to vibrate, so sound cannot travel. This explains why space is silent. [[NCERT Physics Class 9]]

Answer: Hydrochloric Acid

HCl completely dissociates in water into H⁺ and Cl⁻ ions, making it a strong acid. Weak acids like acetic acid only partially dissociate. Strong acids are highly corrosive and used in industrial processes. [[NCERT Chemistry Class 10]]

Answer: Cerebellum

The cerebellum, located at the back of the brain, coordinates voluntary movements, maintains posture, and ensures balance. It receives sensory input and fine-tunes motor activities. [[NCERT Biology Class 11]]

Answer: Battle of Plassey

The Battle of Plassey (1757) is considered the foundation of British political power in India. Robert Clive's victory over Siraj ud-Daulah enabled the East India Company to gain control of Bengal's revenues. [[1]]

Answer: 26th Amendment

The 26th Constitutional Amendment Act (1971) abolished the Privy Purse and privileges granted to former rulers of princely states under Article 291 and 362, fulfilling the constitutional promise of equality. [[30]]

Answer: July 1, 2017

GST was implemented on July 1, 2017, subsuming multiple indirect taxes into a unified tax system. It was a major economic reform aimed at creating a common national market and improving tax compliance. [[1]]

Answer: Balwantrai Mehta Committee

The Balwantrai Mehta Committee (1957) recommended the three-tier Panchayati Raj system (village, block, district levels) for democratic decentralization. Rajasthan was the first state to implement it in 1959. [[1]]

Answer: True

The Indian Civil Service (ICS), the elite administrative service under British rule, was replaced by the Indian Administrative Service (IAS) after independence. The IAS continues as the premier civil service of India. [[30]]

Answer: Tholu Bommalata

Tholu Bommalata, the shadow puppet theatre of Andhra Pradesh, is recognized by UNESCO as Intangible Cultural Heritage. It uses leather puppets to depict epics like Ramayana and Mahabharata. [[30]]

Answer: Ajanta Caves

The Ajanta Caves were among the first Indian sites inscribed as UNESCO World Heritage Sites in 1983, along with Ellora Caves, Taj Mahal, and others. They represent masterpieces of Buddhist rock-cut architecture. [[1]]

Answer: C.V. Raman

Sir C.V. Raman discovered the 'Raman Effect' (light scattering) in 1928, for which he won the Nobel Prize in Physics in 1930. February 28 is celebrated as National Science Day in India. [[1]]

Answer: 1975

India's first satellite 'Aryabhata' was launched on April 19, 1975, from the Soviet Union. It was named after the ancient Indian mathematician-astronomer and marked India's entry into space research. [[30]]

Answer: Lala Amarnath

Lala Amarnath scored India's first Test century (118) against England in 1933 at Gymkhana Ground, Bombay. He later captained India to its first Test series win against Pakistan in 1952. [[30]]

Answer: 1928

India won its first Olympic gold medal in hockey at the 1928 Amsterdam Olympics, defeating Netherlands 3-0. This began India's dominance in Olympic hockey with six consecutive golds (1928-1956). [[1]]