General MCQs
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Q141.A black hole exerts such massive force that its escape velocity is very high due to
Correct Answer: D
High Gravity is the correct factual response to “A black hole exerts such massive force that its escape velocity is very high due to”.
Q142.Which organization publishes 'World Development Report '?
Correct Answer: C
World Bank is the correct factual response to “Which organization publishes 'World Development Report '”.
Q143.Which gas is present in bulb ?
Correct Answer: B
Nitrogen/Neon is the correct factual response to “Which gas is present in bulb”.
Q144.Which gas is present in blub:
Correct Answer: A
Argon is the correct factual response to “Which gas is present in blub:”.
Q145.Choose the word that best complete the meaning of the sentence . Behaving in a ------- and serious way, even in a -------situation, makes people respect you
Correct Answer: A
Calm, difficult is the correct factual response to “Choose the word that best complete the meaning of the sentence. Behaving in a ------- and serious way, even in a -------situation, makes people respect you”.
Q146.In the manufacture of Banaspati Ghee which gas is used?
Correct Answer: A
Hydrogen is the correct factual response to “In the manufacture of Banaspati Ghee which gas is used”.
Q147.The atomic number of Hydrogen is.
Correct Answer: A
01 is the correct factual response to “The atomic number of Hydrogen is.”.
Q148.Nuclear energy when expanded converts
Correct Answer: B
Chemical into heat is the correct factual response to “Nuclear energy when expanded converts”.
Q149.Electron was discovered by:
Correct Answer: A
Electron was discovered by J.J Thomson.
Q150.Which of the following gas is used for cooling in refrigerators?
Correct Answer: A
Chlorofluorocarbon is used to cooling in refrigerators.
Q151.A convex mirror always ____ ?
Correct Answer: B
A convex mirror always forms a virtual, erect, and diminished image of an object regardless of its distance.
Q152.An active asteroid is discovered near ____ orbit for the first time in billion years.
Correct Answer: D
Astronomers discovered '2019 LD2', an active asteroid (comet-like object) near Jupiter's orbit for the first time.
Q153.Apiculture refers to ____?
Correct Answer: B
Apiculture is the scientific practice of keeping and rearing honeybees for honey, wax, and pollination.
Q154.Approximate age of Earth is ____?
Correct Answer: C
Scientific dating of meteorites and ancient rocks places the age of Earth at approximately 4.54 billion years.
Q155.Approximate age of Milky Way is ____?
Correct Answer: C
The age of the Milky Way is estimated to be around 13.5 billion years, nearly as old as the Universe itself.
Q156.Chromosomes first become visible during which phase of mitosis?
Correct Answer: C
During prophase, the chromatin condenses into highly structured chromosomes that become visible under a microscope.
Q157.CNG stands for ____?
Correct Answer: D
CNG stands for Compressed Natural Gas. It is a clear, odorless, and non-corrosive alternative to gasoline and diesel.
Q158.Density of Ice is ____?
Correct Answer: B
The density of ice is about 917 kg/m3 at 0°C, which is less than water's density of 1000 kg/m3, allowing ice to float.
Q159.Density of Milk is ____?
Correct Answer: B
The average density of cow's milk is 1.034 g/cm3, reflecting its solids-not-fat content.
Q160.Density of Water is ____?
Correct Answer: B
While water's density is maximum (1000 kg/m3) at 4°C, at room temperature (25°C) it is approximately 997 kg/m3.