The total volume of atoms present in a fcc unit cell of a metal radius r is
(a) (12/3)πr3(b) (20/3)πr3(c) (16/3)πr3(d) (24/3)πr3Correct option: (c) (16/3)πr3Volume occupied by one atom of radius r= (4/3)πr3In fcc unit cell, 4... View Article
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Define apomixis.
The word Apomixis is derived from two Greek words, “APO” (away from) and “mixed” ( the act of mixing or... View Article
The cloud floats in the atmosphere because of its low
The cloud floats in the atmosphere because of its low (a) Temperature (b) Pressure (c) Velocity (d) Density Answer: (d)... View Article
Longest nerve in human body is
The sciatic nerve is the largest and longest nerve in the human body
Abiotic environment does not include
The abiotic environment does not include Air Soil Plants Water Answer: (c) Plants
Chemical name for Na2Pbo2
The chemical name of Na2Pbo2 is Sodium plumbite.
How is endoplasmic reticulum important for membrane biogenesis?
Answer: Membrane biogenesis is the method of the formation of a plasma membrane with the help of proteins and lipids.... View Article
What is the antonym of dull?
The antonym of dull is bright.
How are maps more useful than globes?
A map is a graphical representation of the Earth on a flat surface like paper, whereas the globe is a... View Article
The standard enthalpy of formation of nh3 is
The standard enthalpy of formation of nh3 is 46.0 kJ/mol.
Which of the following can undergo sublimation?
Which of the following can undergo sublimation? (a) Camphor (b) Iodine Crystals (c) Naphthalene Balls (d) All of the above... View Article
Difference between luminous and non luminous objects
Objects such as the sun that emit light of their own are known as luminous objects. Non-luminous objects are objects... View Article
Which non-metal is used to disinfect water?
Chlorine is a non-metal which is used to disinfect water.
Rutherford’s scattering experiment is related to the size of the
Rutherford’s scattering experiment is related to the size of the (a) electron (b) atom (c) nucleus (d) nucleons Answer: (c)... View Article
All the known planets move in
All planets move in _____. (a) straight paths (b) elliptical paths (c) circular paths (d) hyperbolic paths</p>
What is the range of gravitational force?
The range of the gravitational force is infinite.
To get three images of a single object one should have two plane mirrors at
To get three images of a single object one should have two plane mirrors at (a) 30<sup>0</sup> (b) 60<sup>0</sup> (c)... View Article
Calculate the number of molecules in 4g of oxygen.
To calculate the number of molecules in 4g of oxygen, we have, Moles of oxygen = 4/32 = 0.125mol, Molecules... View Article
What is the feminine gender is boar?
The feminine gender of boar is called gilt.
What is the collective noun for dust?
The collective noun for dust is ‘cloud’, ‘layer’ or ‘pile.
