The Family of Nonmetals Having Valency One. Write the Names From the Description
The family of nonmetals having valency one is called the halogen family. Group 17 is called the halogen family. It... View Article
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if the radius of first bohr orbit of hydrogen atom
The radius of first Bohr orbit of hydrogen atom is 0.529 A˚. If the bond is covalent, divide the distance... View Article
tick the correct options : burning of coal is a/an……………. change a. reversible b. irreversible c. natural d. human – made
When coal is burned, it undergoes a chemical transition, resulting in the formation of new substances such as carbon dioxide... View Article
which compound has lowest boiling point
The lowest boiling point chemical element is Helium, whereas the highest boiling point chemical element is Tungsten. Helium has the... View Article
Isotopes of chlorine with mass number 35 and 37 exist in ratio
Chlorine has 24 isotopes, ranging in mass from 28Cl to 51Cl. Only two stable isotopes exist: 35Cl and 37Cl, which... View Article
state and explain coulombs law in electrostatics
‘The amount of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product... View Article
which one of the following has the highest calorific value
Coal gas H2+CO+CH4 has the highest calorific value. Anthracite (‘coal-like’) is a hard, compact form of coal with a high... View Article
what is dobereiners law of triads explain with the help of one example of dobereiners
The arithmetic mean of the atomic masses of the first and third elements in a triad would be nearly equal... View Article
explain why water is a compound and not a mixture given any five points
Water is a compound. It is made up of many elements, including hydrogen and oxygen atoms that are bonded together.... View Article
Write the electronic configuration and valency of 1 to 30 elements
1. Hydrogen (H) Valency = 1 Electronic Configuration : 1 2. Helium (He) Valency = 0 Electronic Configuration : 2... View Article
Chemical formula of magnet
With the chemical formula Fe3O4, magnetite is a mineral and one of the most important iron ores. It is ferrimagnetic... View Article
What is thermocol made up of ?
The chemical name of thermocol is Polystyrene. Thermocol is a plastic that is 100% recyclable and has a high recycling... View Article
Acetic acid was added to a solid x and kept in a test tube. a colourless and a odourless gas y has evolved. the gas was passed through lime water which turned milky. name x and y and write the chemical reaction
The solid X is Sodium bicarbonate (NaHCO3) The colourless and an odourless gas Y evolved is Carbon dioxide(CO2) When we... View Article
The Number Of Isomers In C4H10O Are______
The answer is Seven There are seven isomers in C4H10O , among which four are alcohol and three are ether.... View Article
14 Elements After Actinium Are Called (a) Lanthanides (B) Actinides (C) D-Block Elements (D) P-Blockelements
The correct answer is option (B) Actinides. 14 elements after actinium are called actinides. To learn more chemistry-related question and... View Article
Explain Why All Decomposition Are Endothermic Reaction
All the decomposition reactions are usually endothermic because they involved in the breaking of bonds. The breaking of bonds usually... View Article
Which Element Has the Electronic Configuration 2 8 2
Magnesium has the electronic configuration of 2, 8, 2. To learn more chemistry-related questions, visit BYJU’S – The Learning App.
Oxidation Number of S in H2SO5 Is 6 This Is Observed Because
The oxidation number of S in H2SO5 is 6 this is observed because of the presence of the peroxide linkage... View Article
Difference Between Strong Acid and Weak Acid
The difference between the strong acid and the weak acids are given below: Strong Acids: 1. Strong acids ionize completely... View Article
Define Anti Markovnikov Rule And Markovnikov With Example
Markovnikov Rule Markovnikov rule describes that in addition to reactions of alkenes or alkynes, the proton is added to the... View Article
