Principal quantum number of an atom is related to the
Options
(a) orbital angular momentum (b) spin angular momentum (c) size of the orbital (d) orientation of the orbital in space
Correct Answer: […]
The physical adsorption of gases on the solid surface is due to
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(a) van der Waals forces (b) covalent bonding (c) hydrogen bonding (d) all of these
Correct Answer:
van der Waals […]
In the gas equation ,PV = nRT
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(a) V is the volume of one mole of the gas (b) n no. of moles of the gas have volume V (c) n is […]
In the reaction : 4Fe + 3O₂ ⇌ 4Fe³⁺ + 6O₂²⁻. Which of the following statement is incorrect
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(a) Metallic iron is a reducing agent (b) Fe³⁺ is an oxidising agent (c) […]
At when pressure will a quantity of gas, which occupies 100 mL at a pressure of 720 mm, occupy a volume of 84 mL
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(a) 820.20 mm (b) 784.15 mm (c) 736.18 […]
Then process of the escape of liquid from tip of uninjured leaf is called
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(a) guttation (b) transpiration (c) evaporation (d) evapo-transpiration
Correct Answer:
guttation
Explanation:
No explanation available. Be the first […]
Pacinian corpuscles occur in the skin of certain parts of body in mammals. These are
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(a) type of glands (b) pain receptors (c) naked tactile receptors (d) encapsulated pressure receptors
Correct Answer: […]
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