Physical Science
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Q1.Atomic Number of Hydrogen is:
Correct Answer: A
Q2.Einstein E=MC2 represent?
Correct Answer: B
Einstein's equation E=mc² expresses the equivalence of mass and energy.
Q3.Which of the following is not the Crystalline?
Correct Answer: A
Plastic is amorphous, not crystalline, unlike table salt, diamond, and quartz.
Q4.Which Metal is liquid at room Temperature?
Correct Answer: C
Mercury is the only metal that remains liquid at room temperature.
Q5.How much percentage of rectified spirit contain Alcohol:
Correct Answer: A
Rectified spirit typically contains about 90-95% alcohol by volume.
Q6.Mass of photon is equal to?
Correct Answer: B
A photon has zero rest mass and travels at the speed of light.
Q7.Pressure of a gas at constant volume increases due to an increase in?
Correct Answer: B
According to Gay-Lussac's Law, gas pressure increases with temperature at constant volume.
Q8.Diamonds is a?
Correct Answer: D
Diamond is an allotrope of carbon where atoms are arranged in a crystal structure.
Q9.Which substance is used in Pencil?
Correct Answer: B
Pencils use graphite (a form of carbon) as the writing core, not lead.
Q10.The radioactive isotope of hydrogen is called?
Correct Answer: A
Tritium is the radioactive isotope of hydrogen.
Q11.Nuclear fission is caused by the impact of?
Correct Answer: C
Nuclear fission is triggered when a neutron strikes the nucleus of a heavy atom.
Q12.AL2CL6 shows:
Correct Answer: A
Q13.Neutron is converted into proton with the emission of an electron and ----------?
Correct Answer: B
Q14.Noble gasses have which type of bonding?
Correct Answer: C
Q15.Chemical Formula of Quartz is?
Correct Answer: C
Q16.Two Water molecules are bounded by?
Correct Answer: B
Q17.Third most common gas that is found in the air we breathe is called:
Correct Answer: C
After nitrogen and oxygen, argon is the third most abundant gas in the air we breathe.
Q18.Electromagnetic radiation with maximum wavelength is:
Correct Answer: B
Among electromagnetic radiations, radio waves have the longest (maximum) wavelength.
Q19.The most dangerous type of radiation is:
Correct Answer: C
Gamma radiation has the highest energy and penetrating power, making it the most dangerous type of radiation.
Q20.Which of the following produce electrolyte after reaction:
Correct Answer: D