Which is the longest group in periodic table?
Modern periodic table is divided into 7 periods and 18 groups. Group 1(H, Li, Na, K, Rb, Cs, Fr) is... View Article
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Which effect is utilized by an electric bulb?
Answer: When electric current passes through a thin, high resistance tungsten filament of an electric bulb, the filament becomes hot... View Article
What is the chemical formula for melting ice?
Answer: The melting of the ice is given as H2O (solid state) → H2O (liquid state) State of Water Water... View Article
What are the basic particles of ice crystals?
Answer: Basic particle forming ice crystals are water molecules. It is a molecular crystal. Water molecules are arranged in cage... View Article
The vapour pressure of a liquid depends upon__________
Answer: The vapour pressure of a liquid depends upon the nature of liquid and temperature. Vapour pressure Vapour pressure can be defined... View Article
What does the presence of striations feature?
Answer: Muscle is a soft tissue found in both animals and humans. There are three types of muscles Skeletal or striated... View Article
What is the image formed by the plane mirror?
Answer: Image formed by a plane mirror is always virtual and erect. The images formed from a plane mirrors are the... View Article
Which is the coldest layer of the atmosphere?
The mesosphere is the coldest layer of the atmosphere Four layers of the atmosphere The atmosphere comprises layers based on... View Article
Polymers that are found in nature are called______
Answer: Polymers that are found in nature are called natural polymers. Natural polymers A polymer is produced by combining small molecules... View Article
Name the dam built across the river Mahanadi.
Answer: Hirakud dam is built across the river Mahanadi. Hirakud dam In the Indian state of Orissa, the Hirakud Dam... View Article
How do most of the flowerig plants reproduce?
Answer: Plants have an innate ability to reproduce, allowing them to create new offspring on a regular basis. Plants are... View Article
What is the largest single use of dihydrogen?
Answer: The largest single use of dihydrogen is in the manufacture of ammonia. Dihydrogen Dihydrogen is a diatomic molecule made up... View Article
What is the oxidation number of N in ammonia?
Answer: -3 The oxidation number of an atom is defined as the charge that an atom appears to have on... View Article
The cell wall of Agaricus is made up of what?
Answer: The cell wall of Agaricus is made up of Chitin. Agaricus Agaricus is a genus of mushrooms whose members... View Article
What will be the volume of 17g of NH3 at N.T.P?
Answer: N.T.P – Normal Temperature and Pressure are defined as air at 20oC (293.15 K, 68oF) and 1 atm. NTP... View Article
What is the Ksp expression for the salt PbI2?
Answer: The equilibrium constant for the dissolution of a solid material into an aqueous solution is the solubility product constant.... View Article
For l = 2, how many orbitals are possible?
Answer: For l = 2, the value of m possible are -2.-1,0,+1,+2. Magnetic quantum number(ml) The value of the magnetic... View Article
When would the sky appear red instead of blue?
Answer: The colour of the sky during the day-time is blue because the molecules in the air scatter blue light more... View Article
Which alkene gives only acetone on ozonolysis?
Answer: 2,3 -Dimethyl-2-butene Ozonolysis Ozonolysis refers to the organic chemical reaction where ozone is employed to cleave the unsaturated bonds of... View Article
How many time zones is the Earth divided into?
The earth has been divided into twenty-four time zones of one hour each. Each zone thus covers 15° of longitude.... View Article
