The mass of an atom of Hydrogen is equivalent to 1-12th the mass of a _____ atom
The mass of an atom of hydrogen is equivalent to 1/12 the mass of a carbon atom. What is an... View Article
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______ turn blue litmus red whereas _____ turn red litmus blue.
Acids turn blue litmus red, whereas Bases turn red litmus blue. Why is the litmus paper used? One of the... View Article
The crystals of Sodium chloride produces crackling sound on heating, called ______
The bigger crystals of sodium chloride break up into smaller ones producing a crackling sound called decrepitation. When the crystals... View Article
Significant Figures depend on ______ number of significant figures in given data.
Significant figures depend only on the least number of significant figures in the given data. What are the significant figures? The... View Article
Ozone is a light bluish gas found in the upper layer of the atmosphere called ______
Ozone is a light bluish gas found in the upper layer of the atmosphere called the stratosphere. Layer’s of atmosphere... View Article
Liquid _____ is used along with liquid ______ to make rocket fuel
Liquid oxygen is used along with liquid hydrogen to make rocket fuel. What is rocket fuel made of? Rocket fuel... View Article
________ is released by refrigerators and air conditioning systems into the atmosphere.
Refrigerators and air conditioning systems release chlorofluorocarbon in the atmosphere. Chlorofluorocarbon(CFC) In the 1920s, refrigeration and air conditioning systems used... View Article
The effect of temperature on the solubility of gas in a liquid is governed by ________
Henry’s law gives us the idea of the effect of temperature and pressure on a gas’s solubility in a liquid.... View Article
_______ is a process that takes place in living beings while breathing air in and out
Respiration is a process that takes place in living beings while breathing air in and out. Why is respiration necessary?... View Article
______is the second largest component of air, constituting almost 21% volume of air
Oxygen is the second-largest component of air, constituting almost 21% volume of air. Nitrogen and oxygen account for 99 per... View Article
In a compound, the elements are _____ in a _____ proportion by mass
In a compound, the elements are chemically combined in a fixed proportion by mass. Law of Definite proportion The Law... View Article
The internal processes which take place in the interior of the earth include _____
The Internal Processes Which Take Place in the Interior of the Earth Include Volcanic eruption and Earthquake. Volcanoes erupt because... View Article
_______ is a process of gradual mixing of two substances kept in contact with each other.
Intermixing of the particles of substances on their own is called diffusion. A motion of the substances relative to one... View Article
A dipole is said to be in stable equilibrium when angle between electric field and dipole moment is (a) Zero (b) 180 degree (c) 45 degree (d) 90 degree
Answer: (1) The moment of the dipole is directed between -ve charge and + charge. Net force and torque on... View Article
The Atomic Number of an Element Having Mass Number 23 and Number of Neutron 12 is – Fill in the Blank
Atomic number = Mass number – Number of neutrons = Number of protons
Explain the formation of sludge during wastewater treatment.
Waste water treatment The major aim of wastewater treatment is to remove as much of the suspended solids as possible... View Article
Why, at the highest point, water does not fall out of the bucket when rotated in a vertical circle?
At the highest point, water does not fall out of the bucket rotated in a vertical circle, because weight provides... View Article
The function of secretion is shown by both_______ and ______ epithelium
The function of secretion is shown by both Cuboidal and Glandular epithelium. The cuboidal epithelium is composed of a single... View Article
How can corrosion of metals be prevented?
Corrosion and its prevention Corrosion is the degradation of a metal caused by an electrochemical process. The metal surface must... View Article
The Number of Electrons in an Atom of Fluorine is 9 Its Electronic Configuration is – Fill in the Blank
The number of electrons in an atom of Fluorine is 9. So, its electronic configuration will be 2, 7.
