Give examples of compounds that contains alcoholic group.
C5H11OH, C6H13OH, C10H21OH are examples of alcoholic groups. Alcohols Alcohols are derivatives of hydrocarbons in which an –OH group has... View Article
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Which of the following has less hydrogen bond S-H or O-H?
Less hydrogen bonding in S-H compared to O-H. Hydrogen bonding Hydrogen bonding refers to the formation of Hydrogen bonds, which... View Article
What the name of the scheme of plantation of new forests?
National Afforestation Programme (NAP), National Mission for a Green India (GIM), and Forest Fire Prevention & Management Scheme (FFPM) are the... View Article
Give one property which does not relate to ferrimagnetism?
When magnetic moments are aligned in the same direction, it is ferromagnetism and not ferrimagnetism Ferrimagnetism Ferrimagnetism is observed when... View Article
Give examples of oxides that are neutral and acidic oxide.
Oxides of elements placed in the centre of the periodic table are amphoteric or neutral (e.g. CO, NO, N2O).SiO2 is... View Article
What do you understand by the term “equation is balanced’?
In a balanced chemical equation, the number of atoms of each element is equal on both sides of the equation.... View Article
How can we turn germanium or silicon into a semiconductor?
Germanium and silicon behave as semiconductor only when doped with some group 15 elements like P or As. Silicon-Germanium Semiconductors... View Article
Identify the element whose compounds show phosphorescence.
Phosphorus compounds are phosphorescent. They store light and give it off later. Luminescence There are three main forms of luminescence... View Article
What is the spatial orientation of sp3d3 hybrid orbitals?
The spatial arrangement of sp3d3 hybrid orbitals is pentagonal bipyramidal. Example: Iodine heptafluoride (IF7): The electronic configuration of the Iodine... View Article
Write the three whole numbers occurring just before 10001.
We can find the whole number occurring just before 10,001 by subtracting 1 from 10,001, which would be 10,001 –... View Article
What is the coordination number of copper in [Cu(NH3)4]2+?
The coordination number of copper in [Cu(NH3)4]2+ is 4. The Coordination number of an atom in a given molecule or... View Article
Are nuclear processes categorised under chemical processes?
There are a few differences between the nuclear processes and the chemical processes, and they are: Nuclear processes are based... View Article
How to obtain white precipitate from hydrogen chloride gas?
Dilute HCl does not react with nitrates but can react with silver nitrate to form a white precipitate of silver... View Article
What is the reason behind molecules existing in free state?
Molecules can exist in free state because they are very stable. Molecule may be formed by the combination of two... View Article
What is formed when Potassium is heated strongly in oxygen?
Potassium oxide is produced from the reaction of oxygen and potassium; this reaction affords potassium peroxide, K2O2. Potassium forms superoxide (KO2) in... View Article
Explain the nature of the image formed by magnifying glass.
A magnifying glass produces a virtual and erect image. Magnifying glass A magnifying glass is a convex lens used to... View Article
Which form of agriculture practices the clearing of forest?
Shifting Agriculture What is shifting cultivation? Shifting cultivation is an agricultural system in which a person uses a piece of... View Article
Where is Dakshin Gangotri, India’s research centre present?
Antarctica Dakshin Gangotri It was the first Indian scientific research base station established in Antarctica as a part of the... View Article
Write short notes on the following.(a) Cytoplasm (b) Nucleus
(a) Cytoplasm: It is a fluid that fills the cell and occurs between the plasma membrane and the nucleus. Cell... View Article
What happens to the total energy after an elastic collision?
In an elastic collision, the total energy of molecules before and after collision remains the same. There is an exchange... View Article
