(i) Pb The outermost electronic configuration of Pb is ns2np2, hence it belongs to group 14 and not group 13. The group 13 elements are the... View Article
A cow is dependent on plants for its food. The single word for this sentence is a cow is a heterotroph. Those organisms which are dependent upon... View Article
The oxidation of sodium borohydride with iodine in diglyme gives diborane. Reaction The action of a metal hydride with boron produced diborane.... View Article
(b) Fern is a producer Fern is an avascular, seedless plant that belongs to the group Pteridophyta. There are about 12 000 types of ferns that... View Article
Crops are plants grown by the farmers. Agriculture plays a very important role in the Indian economy. It is the backbone of our country. 70% of... View Article
Given that Charge,q = 1 C Potential difference V = 6 v To find out We need to find the energy given to each coulomb of charge passing through... View Article
A normal eye is unable to clearly see the objects placed closer than 25 cm because the ciliary muscles of the eyes are unable to contract beyond... View Article
The electrovalent compound is formed by the transfer of electrons from a metal to a non-metal. The bond formed between them is known as the ionic... View Article
The process of extraction of aluminium is known as the Hall-Heroult process. The Hall-Heroult process is widely used in the extraction of... View Article
the term used for the plants that have naked embryos and vascular tissue is Pteridophytes. These have naked embryos and vascular tissue.... View Article
The heater's heating element is made up of an alloy that has very high resistance, so when current flows through the heating element, it becomes... View Article
Zn2+ On adding ammonium hydroxide solution to a solution containing Zn2+ ion a white precipitate is formed. If the addition of ammonium... View Article
Answer: The radius of the curvature of the mirror is defined by the radius of the sphere from which the mirror was cut from. Therefore the... View Article
Apomixis is the development of a seed without fertilization. Apomixis is a type of asexual reproduction which mimics sexual reproduction.... View Article
Answer:Â (c) I (d) A T M O I A H U V W X Y are alphabet that do not undergo lateral reflection. The letter I and A does not show lateral... View Article
Answer: Option (B) HCl The boiling point of covalent compounds(HF, HCl, HBr, HI) increases with an increase in their molecular weight due to... View Article
i)Â Semiconductor The resistance decreases with an increase in temperature. The resistance is directly proportional to the temperature. The... View Article
Nitration of benzene by nitric acid and sulphuric acid is an Electrophilic substitution reaction. Nitration is the class of chemical process that... View Article
