A group of cells performing a particular function is ______
A group of cells performing a particular function is called a tissue. The function of a cell A cell is... View Article
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When does oxygen exhibit +2 oxidation state in the compound?
Since fluorine is more electronegative than oxygen, the oxidation state of oxygen is positive and is +2 in OF2. Explanation... View Article
From where the contact forces of mechanics are fundamentally derived?
A force acting between two bodies in contact is called a contact force. Contact force A contact force arises when an... View Article
How many sets of chromosomes are found in a human somatic cell?
In each somatic cell, there are 23 homologous chromosomes. What are chromosomes? Chromosomes are thread-like structures in which DNA is... View Article
What process would you consider essential for maintaining life?
Life processes are biological/cellular activities that maintain homeostasis, keep the organism alive and propagate the species. Nutrition, respiration, transportation, locomotion, excretion, reproduction and sensitivity Metabolism includes all the chemical reactions that maintain homeostasis. These metabolic (chemical) reactions occur in all the other life processes. Nutrition is the process of obtaining... View Article
What is the basic principle behind simple distillation process?
Simple distillation is the process of separating components of a mixture containing two miscible liquids that boil without decomposition and... View Article
What is the packing efficiency of body centred cubic unit cell?
The packing efficiency of a body centred cubic unit cell is 68%. Packing efficiency The packing efficiency is the fraction... View Article
Give an example of a plant which is produce by grafting method.
Mango can reproduce by grafting in which two closely related varieties can join together to give the desired characteristics. What... View Article
A 0.24 g sample of compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen. Calculate the percentage composition of the compound by weight.
Mass of the given sample compound = 0.24g Mass of boron in the given sample compound = 0.096g Mass of... View Article
Give one advantage of an electromagnet over a permanent magnet.
Magnets come in two main types: permanent magnets and electromagnets. A permanent magnet is always magnetized whereas the magnetism of electromagnet... View Article
Name the forests that are commercially most exploited in India.
The tropical deciduous forests are the commercially most exploited forests in India. Tropical deciduous forest Tropical Deciduous Forests are the most widespread forests of India... View Article
Which blood vessel carries the highest concentration of oxygen?
The Pulmonary vein blood vessel carries oxygenated blood from the lungs back to the heart. Therefore, it carries the highest... View Article
What is the relation between wavelength, frequency and velocity?
The velocity of a wave is v, time period T, frequency n and wavelength λ. By the definition of wavelength,... View Article
How many atoms are present in a (i) H2S molecule and (ii) PO43-ion.
Let us learn about the given molecules. (i) H2S The structure of Hydrogen sulfide is similar to that of water. In... View Article
Is the reaction CaCO3(s) → CaO(s) + CO2(g) an exothermic reaction?
No, CaCO3(s) → CaO(s) + CO2(g) is an endothermic reaction. This is the decomposition of limestone to calcium oxide (quicklime)... View Article
Which kind of garbage is not converted into compost by redworms?
The garbage which contains non-biodegradable items like pieces of cloth, broken glass, aluminium wrappers, polythene bags, nails, broken toys, and... View Article
Does the center of gravity of a body change when it is deformed?
When a body is deformed, it’s centre of gravity changes. The centre of gravity The centre of gravity (COG) of... View Article
Which colour does a turmeric turn into in the presence of bases?
Turmeric turns red in basic solutions. The active ingredient present in turmeric is curcumin as an acid-base indicator. Turmeric paper... View Article
What are the number of groups that belong to the p-block called?
The maximum number of electrons that can be accommodated in a set of orbitals is six. Consequently, there are six... View Article
Why dont the electric lines of force never intersect each other?
Answer: Electrical lines of force can be defined as a way or a direction; they can be straight or curved... View Article
