GK Test 19 (Static)

The manganate ion is MnO4^2-. Oxygen has -2 oxidation state, so total from 4 oxygens = -8. For ion charge -2: x + (-8) = -2, therefore x = +6.

Habeas Corpus (Latin for 'you may have the body') is a court order directing authorities to produce a detained person before the court to determine the legality of their detention. Option B correctly states its purpose.

Statement 1 is wrong - Governors only need to be 35+, not 45+. Statement 2 is correct - Governor serves at President's pleasure. Statement 3 is wrong - Governor can continue until successor assumes office. Statement 4 is correct - all executive power is vested in Governor (Article 154).

Tulsidas composed the Ramcharitmanas between 1574 and 1576 CE. This corresponds to the reign of Mughal Emperor Akbar (1556-1605 CE). The epic was written in Awadhi dialect.

Urea (CO(NH2)2) has the highest nitrogen content among common fertilizers. It contains 46% nitrogen by weight. Ammonium nitrate has ~34%, ammonium phosphates ~18-21%, and potassium nitrate ~13% nitrogen.

In the vacuum of space between Sun and Moon, there is no medium for conduction or convection - both require matter. Heat transfer can only occur through radiation (electromagnetic waves), which needs no medium.

Pendulum period depends on gravity (T = 2π√(l/g)). At a mountain top, g is lower, so period increases (runs slower). In a deep mine, g is also lower due to mass being above, so period also increases (runs slower). Both A and B run slower than C.

Botanically, all four are berries. A berry is a fleshy fruit produced from a single ovary. Brinjal (eggplant), guava, papaya, and tomato all fit this botanical definition despite common culinary classifications.

Endoplasmic Reticulum synthesizes glycoproteins and lipids (2), Mitochondrion handles energy metabolism via cellular respiration (4), Peroxisomes break down fatty acids and amino acids (1), and Lysosomes degrade worn-out cell constituents through autophagy (3). The correct sequence is (a) 2, (b) 4, (c) 1, (d) 3.

Superconductivity is the phenomenon of zero electrical resistance that occurs in certain materials when cooled below a critical temperature. This typically requires extremely low temperatures near absolute zero (usually below 30 K for most materials), though high-temperature superconductors can achieve this at somewhat higher temperatures.

De Broglie wavelength λ = h/p = h/√(2mVq) for an accelerated charged particle. For the same λ: √(m₁V₁q₁) = √(m₂V₂q₂). For proton (m, charge e) and alpha particle (4m, charge 2e): √(mV·e) = √(4m·V₂·2e) = √(8mV₂e). This gives V₂ = V/8. The alpha particle needs V/8 volts.

The Indian men's hockey team won Olympic gold medals in 1928, 1932, 1936, 1948, 1952, 1956, 1964, and 1980. The 1980 Moscow Olympics was their last Olympic gold medal, achieved during a boycott by several Western nations.

Amazon River flows through Manaus, Brazil (3); Nile River flows through Khartoum, Sudan (5); Niger River flows through Niamey, Niger (1); Congo River flows through Kinshasa, DRC (2). The correct matching is (a) 3, (b) 5, (c) 1, (d) 2.

Jhansi was annexed by the British East India Company in 1853 under the Doctrine of Lapse after the death of Raja Gangadhar Rao without a male heir. This policy allowed the British to annex any princely state where the ruler died without a natural male heir.

Bernoulli's theorem (or principle) states that for an inviscid, incompressible flow, the sum of pressure energy, kinetic energy, and potential energy per unit volume remains constant. This is fundamentally derived from the conservation of energy principle applied to fluid flow.

The Nine Degree Channel is a significant water body in the Indian Ocean that separates the Lakshadweep Islands from Minicoy Island. It is named because it approximately follows the 9°N latitude line. This channel is an important maritime route and geographical marker in the region.

From an evolutionary perspective, the pig heart is most similar to the human heart in terms of anatomy, physiology, and size. This similarity makes pigs valuable models for cardiovascular research. Pigs are mammals relatively close to humans on the evolutionary tree compared to more distant species like cows or rabbits.

The deflection of winds in the Southern Hemisphere towards the left is due to the Coriolis effect, which is caused by Earth's rotation. The Coriolis force deflects moving objects (including air masses) to the left in the Southern Hemisphere and to the right in the Northern Hemisphere. Temperature variations, pressure differences, and water content affect wind patterns but don't cause this deflection.

Nadir Shah invaded Delhi in 1739 during the reign of Muhammad Shah (who ruled from 1719 to 1748). This invasion led to the famous Peacock Throne being taken to Persia and the massacre of Delhi's citizens. Muhammad Shah was known as 'Rangeela' (the Colorful One) and was the Mughal Emperor when this devastating invasion occurred.

When a convex lens is cut into two halves along the principal axis, each half maintains the same curvature of surfaces as the original lens. Since focal length depends on the radii of curvature of the lens surfaces and the refractive index, and these properties remain unchanged, the focal length of each half remains the same as the original lens (f). The aperture size reduces but does not affect focal length.

The members of the Constituent Assembly were elected by the provincial Legislative Assemblies. This included both the provinces of British India and the princely states. The Assembly was not directly elected by the general public (the 'Public of India'), nor was it elected by the Union Legislature. Each provincial legislative assembly elected representatives through the single transferable vote system.

The molar mass of CO2 is 44g/mol (12 for carbon + 2×16 for oxygen). At STP (Standard Temperature and Pressure), one mole of any gas occupies 22.4 liters and contains Avogadro's number of molecules (6.02 × 10^23). Therefore, 44g of CO2 at STP equals exactly one mole, which contains 6.02 × 10^23 molecules.

The Moon has an extremely thin atmosphere (exosphere) that is insufficient to scatter sunlight in the way Earth's atmosphere does. On Earth, Rayleigh scattering in our atmosphere makes the sky appear blue during the day. Without a significant atmosphere, the lunar sky appears black even during the daytime, with the Sun appearing as a bright disc against the dark background.

Hepatitis B is caused by the Hepatitis B virus (HBV). Rabies is caused by the Rabies virus (RABV). Mumps is caused by the Mumps virus (MuV). Tetanus is caused by the bacterium Clostridium tetani, not by a virus. Therefore, only options 1, 2, and 3 are viral diseases, making option C correct.

The approximate heights above mean sea level are: Darjeeling (2,050m), Shimla/Simla (2,276m), Kodaikanal (2,133m), and Mahabaleshwar (1,438m). In descending order (highest to lowest): Simla (2,276m) > Kodaikanal (2,133m) > Darjeeling (2,050m) > Mahabaleshwar (1,438m). Option B correctly places them in this descending sequence.

In solid CsCl (cesium chloride), the structure is body-centered cubic (BCC). In this arrangement, Cs+ ions occupy the corners of the cube and one Cl- ion sits at the body center (or vice versa). This differs from the simple cubic, face-centered cubic, or hexagonal close-packed structures. Each ion is surrounded by eight ions of the opposite type, giving it a coordination number of 8.

Michael Schumacher was a legendary Formula 1 racing driver, not a tennis player. Patrick Rafter, Lindsay Davenport, and Billie Jean King are all well-known tennis players, making Schumacher the correct answer as the non-tennis player.

The correct matching is: Zeolite is used for water purification (4), Sodium thiosulphate is used in photography (5), Magnesium sulphate (Epsom salt) is a purgative (1), and Graphite is used in safety matches (2). Option D correctly pairs (a)-4, (b)-5, (c)-1, (d)-3.

The Karachi Resolution of 1931 proclaimed fundamental rights including equality before law (statement B), better working conditions (statement C), and protection of minority culture and language (statement D). Statement A about state control over industries was not part of this resolution.

Entropy is a measure of disorder, and gases have the highest entropy among the three states of matter. Water vapour (gas) has maximum entropy compared to liquid water or solid water (ice). At the triple point, water exists in equilibrium between all three phases, giving it less entropy than pure vapour.

The correct historical matching is: 1764 - Battle of Buxar (4), 1829 - Abolition of Sati (3), 1854 - Wood's Dispatch on education (1), 1856 - Widow Remarriage Act (2). Option C correctly shows (a)-4, (b)-3, (c)-1, (d)-2. Note: 'Window' in the question is a typo for 'Widow'.

Bhutan shares borders with four Indian states: Arunachal Pradesh, Assam, Sikkim, and West Bengal. Bihar does not border Bhutan, and Meghalaya borders Assam but not Bhutan directly.