No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question
  • 0 answers
  • 3 answers

Shivam Pareek 8 years, 3 months ago

It is very easy to copy and past it from google

Sweety Sheoran 8 years, 3 months ago

Entropy is a measure of randomness of the system.

Amar Kumar 8 years, 3 months ago

Entropy, the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. Because work is obtained from ordered molecular motion, the amount of entropy is also a measure of the molecular disorder, or randomness, of a system. The concept of entropy provides deep insight into the direction of spontaneous change for many everyday phenomena.

  • 2 answers

Sweety Sheoran 8 years, 3 months ago

Atomic mass=no.of protons present in the atom +no.of neutrons present in the atom

Amar Kumar 8 years, 3 months ago

The mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.

  • 1 answers

Amar Kumar 8 years, 3 months ago

Stoichiometry measures these quantitative relationships, and is used to determine the amount of products/reactants that are produced/needed in a given reaction. Describing the quantitative relationships among substances as they participate in chemical reactions is known as reaction stoichiometry.

  • 2 answers

Amar Kumar 8 years, 3 months ago

Metamerism in chemistry is the type of isomerism in which chemical compounds have identical proportions of the same elements and the same molecular weight, but have radicals differing in type or position, with resulting differences in chemical properties.

Compounds having the same molecular formula but different number of carbon atoms ( alkyl groups) on either side of functional group ( i.e., -O-,-S-, -NH-, -C(=O)-) are called metamers and the phenomenon is called metamerism. metamerism occurs amongst the members of the same homologous family.

Swami Ji 8 years, 3 months ago

Segmentation is nothing but metamerism
  • 0 answers
  • 1 answers

Anki Kaun 8 years, 3 months ago

By simply subtracting total number of proton from atomic mass.
  • 1 answers

Bhawani Tanwar 8 years, 3 months ago

It is the branch of chemistry which deals with the study of natural compounds and atoms.
  • 0 answers
  • 0 answers
  • 0 answers
  • 0 answers
  • 1 answers

Shweta Jaiswar 8 years, 3 months ago

In certain elements when the 2 subshell differ slightly in their energies, an electron may shift from a subshell of lower energy to a subshell of higher energy only if such a shift results in the symmetrical distribution (either completely filled or exactly half filled ) of the electrons in the various orbitals of the subshell of higher energy....
  • 1 answers

Naveen Sharma 8 years, 3 months ago

They are mathematical functions used to describe the wave like properties of the electrons in an atom. They represent the regions where the probability of finding an electron is maximum around the nucleus of the atom. These are also called as atomic orbitals that are represented by 3 quantum numbers: n(principal quantum number), l(azimuthal quantum number) and m(magnetic quantum number). These quantum numbers are used to specify the electron's energy, location and angular momentum.

  • 0 answers
  • 0 answers
  • 1 answers

Pradeep Samota 8 years, 4 months ago

these error arises with regularity and tend to a direction either in positive or in negative
  • 1 answers

Naveen Sharma 8 years, 3 months ago

In diamond each carbon atom is bonded to four other carbon atoms which forms giant, three dimensional structure. Due to its giant structure diamond cannot easily heated up. Because giant covalent compound has many atom joined together by covalent bonds. To break all these bonds lot heat energy is required

  • 1 answers

Naveen Sharma 8 years, 3 months ago

In organic chemistry, functional groups are specific groups (moieties) of atoms or bonds within molecules that are responsible for the characteristic chemical reactions of those molecules.

  • 2 answers

Naveen Sharma 8 years, 3 months ago

Electron Gain Enthalpy is the energy released when one mole of electron are added to gaseous atoms of an element. Electron Affinity is the same as Electron Gain Enthalpy but viewed as the energy supplied to the surroundings rather than that released by the atoms. Hence its sign is opposite from the latter.

Priya Goswami 8 years, 4 months ago

The amount of energy released when electron is added to a shell .
  • 1 answers

Sweety Sheoran 8 years, 3 months ago

Because the central atom have no lone pair of electrons and the shared electrons are equally attracted by the two atoms
  • 0 answers
  • 1 answers

Hamza Muhammed 8 years, 4 months ago

Oxidation in a chemical reaction refers to the addition of oxygen and removal of hydrogen in a chemical reaction.

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Download myCBSEguide App