Top 100 General Science Questions and Answers
The vascular cryptogam plant is -
(A) Bryophyte
(B) Pteridophytes
(C) Thallophyta
(D) Spermatophyte
Correct Answer : B
What does food provide for us?
(A) Energy and water
(B) Energy and organic material
(C) Energy and nitrogen
(D) Only energy
Correct Answer : B
Which of the following consists of the exchange part of the respiratory system?
(A) From external nostrils up to the alveoli
(B) From external nostrils to terminal bronchioles
(C) From trachea to terminal bronchioles
(D) Alveoli and their ducts
Correct Answer : D
What is the name of 17 day campaign which will be launched from July 10 to July 26 from the National Highway 20 near ITO to reduce air pollution?
(A) Podhe Ugao, Paryavaran Bachao
(B) Podhe Lagao, Paryavaran Bachao
(C) Podhe Ugao, Desh Bachao
(D) Podhe Lagao, Desh Bachao
Correct Answer : B
Explanation :
The BreatheLife campaign is calling on urban, regional and national governments to commit to achieving WHO air quality guidelines by 2030.
Which of the following substances is insoluble in water?
(A) Salt
(B) Sugar
(C) Chalk powder
(D) Milk
Correct Answer : C
Explanation :
Chalk powder, which primarily consists of calcium carbonate, is relatively insoluble in water. While it can react very slowly with water over time to form soluble calcium bicarbonate, the solubility of chalk powder in water is extremely low, making it effectively insoluble for most practical purposes.
Which of the following gas causes explosion in coal mines?
(A) Carbon dioxide
(B) Nitrogen
(C) Butane
(D) Methane
Correct Answer : D
Explanation :
Methane is the gas that can cause explosions in coal mines. Methane is a highly flammable gas, and when it accumulates in high concentrations in confined spaces like coal mines, it poses a significant risk. Methane explosions can occur if the gas comes into contact with an ignition source, such as a spark or flame, leading to a dangerous explosion. That's why proper ventilation and safety measures are crucial in coal mines to prevent methane buildup and potential explosions.
By what metabolic process in the kitchen can you make food like curd, paneer and sauerkraut?
(A) Pasteurisation
(B) Fermentation
(C) Condensation
(D) Steaming
Correct Answer : B
Explanation :
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.
What is the correct statement related to Avogadro?
(A) Avogadro made a distinction between electrons and neutrons.
(B) Avogadro discovered a difference between animal and plant cell.
(C) Avogadro discovered electrons.
(D) Avogadro made a distinction between atoms and molecules
Correct Answer : D
Explanation :
This is a fundamental constant in chemistry that represents the number of atoms or molecules in one mole of a substance. (Option 4 is correct) Its value is approximately 6.022 x 1023, and it is denoted by the symbol "N_A". Avogadro's number is a key concept in stoichiometry. The branch of chemistry deals with the quantitative relationships between reactants and products in chemical reactions.
Who is the winner of Miss World 2017 title?
(A) India's Manushi Chhillar
(B) England's Stephanie Hill
(C) Mexico's Alma Andrea Meza Carmona
(D) Puerto Rico's Stephanie Del Valle
Correct Answer : A
Explanation :
During the Miss World 2017 pageant, Manushi made it to the semi-finals in the Top Model, People's Choice, and Multimedia competitions. Along with this, she was also declared the co-winner of 'Beauty with a Purpose' contest.
In the format of the IUPAC name of the organic compound, the term ‘Root’ is used to represent:
(A) the number of carbon atoms in the parent chain
(B) the presence of side chains or substituent groups
(C) functional groups that may be present in the compound
(D) the cyclic or acyclic nature of the given compound
Correct Answer : A
Explanation :
The Word root indicates the total number of carbon atoms present in the longest carbon chain belonging to the compound For example, 'Meth' refers to a chain with 1 carbon atom and 'Pent' refers to a chain with 5 carbon atoms. metalloid in dictionary chemical name is Naoh. Nylon properties: Atomic number of iodine. Dobereiner Traids an Atomic compound.
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Rajesh Bhatia
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