Name the second most abundant metal in the earth’s crust
Iron is the second most abundant metal in the earth€™s crust. It is also the most widely used metal.
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What is the energy change known as in photovoltaic cell?
The energy change that takes place in a photovoltaic cell is Light energy to electrical energy.
Which type of solids are held by weak dispersion forces?
In non polar molecular solids, molecules are held by weak dispersion forces or London forces.
What is the nature of electolytes used in a salt bridge?
Inert electrolytes are used as their ions are not involved in any electrochemical change.
Name the part of a neuron where information is acquired.
The dendritic tip sets off a chemical reaction that creates an electrical impulse. These signals will accumulate in the cell body,... View Article
What are the near and far points of a healthy human eye?
Near and Far points of a healthy human eye are 25 cm and infinity respectively.
Which technique is used to separate salt from sea water?
Water gets evaporated from sea water and salt residue is left behind.
Inert gases belong to which block of the periodic table?
The outermost electronic configuration of inert gases is ns2np6.
Which state of India is the leading producer of Linseed?
Madhya Pradesh is the leading producer of linseed in India.
Name the force which is holding atmosphere to the earth.
Gravity holds down our atmosphere and the air we need to breathe and keep it from drifting into space. Anything that has mass also has gravity.... View Article
What are some of the elements found inside nucleic acids?
Following are the elements that are found in the nucleic acid: i) Carbon molecules ii) Oxygen molecules iii) Hydrogen molecules... View Article
What is the atomic mass of water? How is this determined?
Atomic mass of water is 18.02 amu. Atomic mass of H is: 1.01 amu x 2 Atomic mass of O... View Article
Which form of iodine is used for the treatment of goiter?
The chemical properties of all the isotopes of an element are the same. An isotope of iodine is used in... View Article
How to measure the rate of change of momentum with time?
The rate of change of momentum is directly proportional to the force. The unit of force is newton, that is,... View Article
What is the value of half life of a first order reaction?
For a first order reaction, half life period is independent of the initial concentration of the reacting species.
Out of NH3, PH3, AsH3 and SbH3 the most basic hydride is______
Answer: NH3 The most basic hydride is NH3. Basicity decreases in the order NH3 > PH3 > AsH3 > SbH3... View Article
Which two islands are situated on the same latitude 20°S?
Answer: Tonga islands in the Pacific Ocean and Mauritius Islands in the Indian Ocean are the two islands are situated... View Article
What evolves carbon dioxide when HCl acid is added to it?
Carbon dioxide gas evolves when Hydrochloric acid is added to calcium carbonate.
Name the states where black soil covers the maximum area.
Maharashtra and Gujarat are the states where black soil covers the maximum area.
How many bonds are present in cyclic metaphosphoric acid?
The number of P-O-P bonds in cyclic metaphosphoric acid is three.
