Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by K Preethi Chowdary 5 years, 1 month ago
- 2 answers
Gopika Satheesh 5 years, 1 month ago
Posted by Funny Channel 5 years, 1 month ago
- 0 answers
Posted by Manasi Mandal 5 years, 1 month ago
- 4 answers
Rimjhim Goyal 5 years, 1 month ago
Kanku Rakes 5 years, 1 month ago
Posted by Nandini Patil 5 years, 1 month ago
- 1 answers
Gaurav Seth 5 years, 1 month ago
Dominant trait: The trait which can express its effect over contrasting trait is called a dominant trait. It is expressed even in the presence of one copy of an allele for a particular character in the gene, i.e., it is expressed in the heterozygous condition.
Example: Yy represents dominant trait for yellow seed colour. Seed is yellow even when single copy is dominant allele Y is present.
Posted by Dhanasree .R 5 years, 1 month ago
- 2 answers
Shivam Rai 5 years ago
Haripal Singh 5 years, 1 month ago
Posted by Anushika Singhal 5 years, 1 month ago
- 5 answers
Vansh Rawat 5 years, 1 month ago
Md Kamran 5 years, 1 month ago
Harsh Janghu 5 years, 1 month ago
Haripal Singh 5 years, 1 month ago
Haripal Singh 5 years, 1 month ago
Posted by Sradha Mishra 5 years, 1 month ago
- 5 answers
Posted by Ab Bhatt 5 years, 1 month ago
- 4 answers
Kamlendra Mishra 5 years, 1 month ago
Posted by Aman Kumar 5 years, 1 month ago
- 1 answers
Namrata Jindal 5 years, 1 month ago
Posted by Chaitanya Patil 5 years, 1 month ago
- 5 answers
Aman Kumar 5 years, 1 month ago
Posted by Subham Gite 5 years, 1 month ago
- 0 answers
Posted by Sai Mahesh 5 years, 1 month ago
- 1 answers
Prajnasree Behera 5 years, 1 month ago
Posted by Ashutosh Ranjan 5 years, 1 month ago
- 5 answers
Aman Kumar 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
A rainbow is the diffraction of sunlight through water droplets in the air. To see a rainbow, you need to be looking at light rain with the sun behind you. The rainbow is curved as it reflects the round shape of the sun. It is a semicircle because only half of your field of vision is the air (the other half is the Earth). If you are in an aeroplane with the sun directly overhead and you look down into a raincloud, you will see the rainbow is a full circle, again reflecting the fact the sun is round.
Posted by Harsh Pawar 5 years, 1 month ago
- 3 answers
Aman Kumar 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
Basic oxide:
Metals react with oxygen to give basic compounds of oxygen. These compounds are usually ionic in nature. Group 1, 2 and lanthanides form basic compounds of oxygen when they react with dioxygen. During the formation of these compounds, a large amount of energy is released. These compounds readily react with water except a few exceptions.
Examples: M2O3, MO2, ThO2
Na2O + H2O → 2NaOH
Acidic oxide:
Non-metals react with oxygen to form acidic compounds of oxides which are held together by covalent bonds. These compounds can also be called as acid anhydrides. Acid anhydrides usually have a low melting and boiling point except for compounds like B2O3 and SiO2 which have high melting points and form giant molecules.
Examples: NO, CO2
SO3 + H2O → H2SO4
B2O3 + H2O → 2H3BO3
Ashutosh Ranjan 5 years, 1 month ago
Posted by Dēvīl ? 5 years, 1 month ago
- 4 answers
Rudraksh Rai Udaiwal 5 years, 1 month ago
Arpan Kaur Dhillon 5 years, 1 month ago
Posted by Niharika Singh 5 years, 1 month ago
- 2 answers
Yogita Ingle 5 years, 1 month ago
Ammonia is a base but doesn’t contain any hydroxyl group because it forms OH- ions when it is added to water.
In water, ammonia forms ammonium hydroxide. While adding water, ammonia ionises for forming the ions of ammonium and hydroxide ions.
In water, ammonia accepts the protons which are provided by dissociation of water. Water in this case which acts as an ‘acid’ and since ammonia accepts these protons, which it acts as a ‘base’.
A . 5 years, 1 month ago
Posted by ಹರ್ಷನಂದ ಹರ್ಷನಂದ 5 years, 1 month ago
- 5 answers
ಹರ್ಷನಂದ ಹರ್ಷನಂದ 5 years ago
Yogita Ingle 5 years, 1 month ago
The variations ensure that the survival of the species as they allow the members of population to adapt to the changing environment and conditions. The species are more suitable to the changed environment . Thus continuity of the species is maintained.
For example, Bacteria variants which can withstand tolerate heat will survive better in a heat wave than variant which cannot heat wave. It proves that creation of variations in a species promote survival.
Posted by Sonakshi Bhardwaj 5 years, 1 month ago
- 5 answers
Bobby Dubey 5 years, 1 month ago
Posted by Som Rawat 5 years, 1 month ago
- 2 answers
Chirag Anand 5 years, 1 month ago
Posted by Francis Lalu 5 years, 1 month ago
- 2 answers
Chirag Anand 5 years, 1 month ago
Bobby Dubey 5 years, 1 month ago
Posted by Francis Lalu 5 years, 1 month ago
- 3 answers
Harsh Janghu 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
Joule’s law of heating states that, when a current ‘i ' passes through a conductor of resistance ‘r’ for time ‘t’ then the heat developed in the conductor is equal to the product of the square of the current, the resistance and time.
Chirag Anand 5 years, 1 month ago
Posted by Francis Lalu 5 years, 1 month ago
- 2 answers
Yogita Ingle 5 years, 1 month ago
The melting point and of Tungsten is an alloy which has very high melting point and very high resistivity so does not burn easily at a high temperature.
Bobby Dubey 5 years, 1 month ago
Posted by Francis Lalu 5 years, 1 month ago
- 3 answers
Saroj Kumar 5 years ago
Chirag Anand 5 years, 1 month ago
Subham Gite 5 years, 1 month ago
Posted by Mohit Garg 5 years, 1 month ago
- 2 answers
Subham Gite 5 years, 1 month ago
Yogita Ingle 5 years, 1 month ago
Chipko Andolan (‘Hug the Trees Movement’) was launched by the people of Reni in Garhwal in the early 1970s and was spread headed by Sunder Lal Bahuguna. The Chipko Andolan was the result of a grassroot level effort to end the alienation of people from forests. The movement originated from a dispute between the local villages and are logging contractor who had been allowed to fell trees in a forest close to the village. On the specific day the forest contractors workers appeared in the forest to cut the trees while the men folk were absent. The woman of the village reached the forest quickly and clasped the tree trunks with their arms , thus preventing the workers from felling the trees. The forest trees were saved and the contractor had to withdraw.
Posted by Nilu Jha 5 years, 1 month ago
- 2 answers
Yogita Ingle 5 years, 1 month ago
Reproduction is a natural process, which helps in providing stability to the population of species by producing new individuals of the same species from existing organisms. Reproduction also maintains the continuity of species and helps in studying evolution.
Reproduction is necessary to provide stability and balance on the planet. Both birth and death are natural events that balance the universe. If anyone of these phenomenon stops occurring, then there would be a great loss in the balance of the universe and the stability to the population of species.
Reproduction is important in order to keep the balance of the universe. Reproduction helps to create variation among the genome and populations. Similar to reproduction, death is also a natural process. if either one of this phenomenon stops occurring, the balance of the universe will be lost. If people just keep dying and new births occur, the planet will be devoid of living organisms soon.
Arun Adhana 5 years, 1 month ago
Posted by Gaurav Dangwal 5 years, 1 month ago
- 4 answers
Yogita Ingle 5 years, 1 month ago
The colour of ferrous sulphate is green. It changes to brown after heating.
On heating: FeSO4.7H2O→FeSO4(s)+7H2O(g)
The product formed is ferric oxide (Fe2O3). This is a decomposition reaction.
On strong heating: 2FeSO4(s)→Fe2O3(s)+SO2(g)+SO3(g
Rohit Sen 5 years, 1 month ago
Posted by Siddaraju Siddaraju 5 years, 1 month ago
- 3 answers
Yogita Ingle 5 years, 1 month ago
(1) It is used for making soaps and detergents.
(2) It is used for making artificial textile fibres.
(3) It is used in the manufacture of paper.
(4) It is used in purifying bauxite ore.
Posted by Swagata Lakshmi Mallik 5 years, 1 month ago
- 0 answers
Posted by Laxmi S.P? 5 years, 1 month ago
- 2 answers
Devansh Yadav 5 years, 1 month ago
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Shivam Rai 5 years ago
1Thank You