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The man who is known as the Father of Experimental Physics is (1) Newton (2) Albert Einstein (3) Galileo (4) Rutherford

Answer: (3) Galileo di Vincenzo Bonaulti de Galileo was an Italian astronomer, engineer and physicist. Galileo was called the father... View Article

A solution turns red litmus into blue; its pH is likely to be (1) 1 (2) 4 (3) 5 (4) 10

Answer: (4) 10 Changing the colour of red litmus paper to blue is a general property of the alkaline solution.... View Article

What is Boyle temperature?

Answer: The temperature at which the real or non-ideal gas behaves an ideal gas over a wide range of pressure... View Article

Spirogyra is called pond silk because (1) Filaments are made up of silk (2) Filaments are slippery to touch (3) It looks like thread (4) All of the above

Answer: (2) Filaments are slippery to touch Spirogyra is free-floating green algae present in freshwater habitats such as ponds, lakes, etc.... View Article

Why do we store Silver chloride in dark coloured bottles?

Answer: Silver chloride is an example of a light-sensitive chemical compound and the reaction is an example of a photolytic... View Article

Which one of the following statement is correct? (1) If x⁶ + 1 is divided by x + 1 reminder is -2. (2) If x⁶ + 1 is divided by x – 1 reminder is 2. (3) If x⁶ + 1 is divided by x + 1 reminder is 1. (4) If x⁶ + 1 is divided by x – 1 reminder is -1.

Answer: (2) If x6 + 1 is divided by x – 1 reminder is 2 To understand the true statement each... View Article

Boiling point of petrol in degree celsius is (1) Below 20 (2) 170 – 120 (3) 35 – 70 (4) 270 – 340

Answer: (3) Petroleum is a fossil fuel that naturally occurs in the liquid form created by the decomposition of organic... View Article

What is the systematic position of funaria?

Answer: Funaria is a Moss genus. The plant is a part of the Funariaceae family. The order is Funariales, and... View Article

Pebrine disease of silkworms is caused by (1) Nosema (2) Plasmodium (3) Dugesia (4) Monocystis

Answer: (1) Pebrine, is a dangerous disease to in silkworms and the causative organism is Nosema bombycis, a protozoan. This... View Article

What is the chemical formula of zeolite?

Answer: Zeolites are microporous, three dimensional crystalline solid of aluminium silicate. The chemical formula of zeolites is Na2Al2Si2O8.xH2O. Zeolites have... View Article

Write two examples of plants with prop roots.

Answer: The root is an underground part of the plant that absorbs water and minerals from the soil and anchors... View Article

How can you verify the Faraday’s First Law Of Electrolysis experimentally?

Answer: Faraday’s – First Law of Electrolysis It states, during electrolysis, the amount of chemical reaction which occurs at any... View Article

List the three events that occur during the process of photosynthesis. Explain the role of stomata in this process

Answer: Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later is used to... View Article

Factorise:a^3 – b^3 – C^3 – 3abc

Answer: We know that a3 + b3+ c3− 3abc = (a + b + c)(a2 + b2+ c2− ab −... View Article

(1) Differentiate between microsporogenesis and megasporogenesis. (2) Which type of cell division occurs during these events? (3) Name the structures formed at the end of these two events.

Answer: (1) The difference between microsporogenesis and megasporogenesis is listed below. Microsporogenesis Megasporogenesis Microsporogenesis involves the formation of microspores from... View Article

Phenols do not respond to which of these tests? (1) Ferric chloride test (2) Litmus test (3) Bromine test (4) Nessler’s reagent test

Answer: (4) The reagent of Nessler is a mercury(II) iodide (HgI2) solution in potassium iodide and potassium hydroxide, named after... View Article

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