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    • Posted by Sachi1527 Sahu 5 years, 8 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Aman Barnwal 5 years, 8 months ago

    Oxygen was discovered for the first time by a Swedish Chemist, Carl Wilhelm Scheele, in 1772. Joseph Priestly, an English chemist, independently, discovered oxygen in 1774 and published his findings the same year, three years before Scheele published.

    1Thank You

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    • Posted by Prianshi Kamboj 5 years, 8 months ago

    CBSE > Class 11 > Home Science
    • 0 answers
    ANSWER

    • Posted by Prince ? {The Love Guru} ? 5 years, 8 months ago

    CBSE > Class 11 > Psychology
    • 3 answers

    Aman Kumar 5 years, 8 months ago

    Firstly you read class 10th science chapter 7

    0Thank You

    Shreya_ S❤️ 5 years, 8 months ago

    Telepathy?...

    0Thank You

    Brainly Buddy 5 years, 8 months ago

    By reaching superconscious mental stage we can read minds

    2Thank You

    ANSWER

    • Posted by Yoga Tv 5 years, 8 months ago

    CBSE > Class 11 > History
    • 1 answers

    Altaf Husain 5 years, 8 months ago

    Early humans lived in jungle and were afraid of bigger and stronger wild animals. Earlier they had no house to live in and they spend their time on the trees or hide themselves behind the bushes. But it could provide them security from wild animals, rain, winter and sun heat. So, they started living in caves. As food and clothes is the basic necessity of humans, they started wrapping tree leaves and animal skin over their body to protect themselves from cold and heat. But they needed food also to live. They do not know how to grow crops in fields and finding food was not easy. Discovery of tools:. In start, early man started killing small animals for food. But they could not kill large animals with their bare hands. So, they used sharp edged stones to kill animals. Probably, this was the first tool he had started using for his need. They kept on improving their tools with time and requirements. They found that if they tied a sharp stone to a long piece of wood, they could throw it to a wild animal at a longer distance and they did not require go near to kill it. Discovery of Fire: Early humans ate raw flesh as they did not know how to cook their food. They had seen broken out fire in jungle severally, but did not know how to make it and how they could use it. Rather, they were afraid of it like animals. With time, they felt that they could use it for keeping themselves warm in winter. But making fire was really a big problem. So, they decided to keep jungle fire burning and started to adding dry grass or leaves to it. But it was not a permanent solution.

    4Thank You

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    • Posted by Deepansh Singh 5 years, 8 months ago

    CBSE > Class 11 > Accountancy
    • 1 answers

    Nav Brar 5 years, 8 months ago

    define voucher

    1Thank You

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    • Posted by Vikas Konnur 5 years, 8 months ago

    CBSE > Class 11 > Biology
    • 1 answers

    Meghna Thapar 5 years, 8 months ago

    Phaeophyceae In the members of class-Phaeophyceae, the plant body is usually attached to the substratum by a hold fast and has a stalk called stipe and a leaf like photosynthetic organ called frond.

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    • Posted by Meenu Lotey 5 years, 8 months ago

    CBSE > Class 11 > Business Studies
    • 0 answers
    ANSWER

    • Posted by Ghanshyam Dasa 5 years, 8 months ago

    CBSE > Class 11 > Applied Maths
    • 1 answers

    Amit Gaur 5 years, 8 months ago

    Very soon

    0Thank You

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    • Posted by Chandu Bindu 5 years, 8 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Account Deleted 5 years, 8 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Ramesh Chandra Upadhyay 5 years, 8 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Dark ..? 5 years, 8 months ago

    Bhut easy h 10 class ka math

    0Thank You

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    • Posted by Lhingchamkim Lhouvum 5 years, 8 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Ankan Chatterjee 5 years, 8 months ago

    Weight in gram(s) can be found as like: Atomic mass of Carbon is 12 amu(atomic mass unit) but when we write 1 mole of Carbon it becomes 12 grams. Similarly for molecular mass(not weight) for Magnesium Carbonate (MgCO*3): atomic mass for magnesium is 24g, for Carbon it is 12g and Oxygen it is 16g. So, just add it according to the formula of the compound. Molecular mass of Magnesium Carbonate: 24+12+16*3=84g. Thanks:)

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    • Posted by Aditi Goel 5 years, 8 months ago

    CBSE > Class 11 > Physics
    • 4 answers

    Ankan Chatterjee 5 years, 8 months ago

    Yes, it contains 5 significant figures.

    0Thank You

    Sulabh Gupta 5 years, 8 months ago

    Becoz zeroes after the decimal point are significant

    1Thank You

    Aditi Goel 5 years, 8 months ago

    Why not 2..???

    0Thank You

    Sulabh Gupta 5 years, 8 months ago

    It contains 5 significant figures

    0Thank You

    ANSWER

    • Posted by Sachin Chauhan 5 years, 8 months ago

    CBSE > Class 11 > Computer Science
    • 4 answers

    Raj Parjapati 5 years, 7 months ago

    Hacking is a process by which an unauthorised user take your all personal details by hack your data.

    0Thank You

    Sukriti Shandilya 5 years, 8 months ago

    Megha agar usse aisa answer chahiya hota toh wo google kar sakta par usne pucha it means usse easy wording mai samjhna tha

    0Thank You

    Sukriti Shandilya 5 years, 8 months ago

    Hacking is a type of technology threat(takniki chalaki).we may say that it is a process by which we can remove or take data of any electronic gadgets by modifiying our system

    0Thank You

    Meghna Thapar 5 years, 8 months ago

    Hacking is the process of gaining unauthorized access into a computer system, or group of computer systems. This is done through cracking of passwords and codes which gives access to the systems. Cracking is the term which specifies the method by which the password or code is obtained.

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    • Posted by Dhruv Jishtu 5 years, 8 months ago

    CBSE > Class 11 > Legal Studies
    • 0 answers
    ANSWER

    • Posted by Vanshika Ghai 5 years, 8 months ago

    CBSE > Class 11 > Business Studies
    • 0 answers
    ANSWER

    • Posted by Vanshika Ghai 5 years, 8 months ago

    CBSE > Class 11 > Economics
    • 1 answers

    Rudransh Sharma 5 years, 8 months ago

    Indian Eco development

    0Thank You

    ANSWER

    • Posted by Vishakha Rathore 5 years, 8 months ago

    CBSE > Class 11 > History
    • 1 answers

    Meghna Thapar 5 years, 8 months ago

    North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. In can also be described as a northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea.

    North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), about 16.5% of the earth's land area and about 4.8% of its total surface. North America is the third largest continent by area, following Asia and Africa, and the fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in 23 independent states, or about 7.5% of the world's population, if nearby islands (most notably around the Caribbean) are included.

    1Thank You

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    • Posted by Radha Krishna Kumar 5 years, 8 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Karan Singh 5 years, 8 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 5 years, 8 months ago

    RULES OF WRITING ELECTRONIC CONFIGURATION:

              “It is the number of electrons in different orbitals. “

    There are certain set of rules that are followed:

    Aufbau principle: It states that in ground state of atom, the orbitals are filled in order of their increasing energies. That is electrons first occupy the lower energy orbital then higher energy orbitals are filled.

    According to it:

    1. The lower the value of n+l for an orbital, the lower is its energy and is filled first.

    For example: Out of 2s and 2p ,2s is filled first as n+l for 2s, is 2+0=2 and for 2p it is 2+1=3. Therefore, 2s is filled first.

    1. If two orbitals have same value of n+l , than the orbital with lower value of n is filled first.

    For example: Out of 3p and 4s, n+l for both is 4 . Therefore, 3p is filled first as it possess lesser value of n.

     

    2Thank You

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    • Posted by Ritika Choudhary 5 years, 8 months ago

    CBSE > Class 11 > Psychology
    • 0 answers
    ANSWER

    • Posted by Sulabh Gupta 5 years, 8 months ago

    CBSE > Class 11 > Physics
    • 2 answers

    Ankit Kumar 5 years, 8 months ago

    Accuracy : tend to be in one direction Precition : which occur irregular

    0Thank You

    Meghna Thapar 5 years, 8 months ago

     In measurement of a set, accuracy refers to closeness of the measurements to a specific value, while precision refers to the closeness of the measurements to each other. Both accuracy and precision reflect how close a measurement is to an actual value, but accuracy reflects how close a measurement is to a known or accepted value, while precision reflects how reproducible measurements are, even if they are far from the accepted value.

    0Thank You

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    • Posted by Subhasree Dresses Konkorada Konkorada 5 years, 8 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Subhasree Dresses Konkorada Konkorada 5 years, 8 months ago

    Please reply speed

    1Thank You

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    • Posted by Mani Rajput 5 years, 8 months ago

    CBSE > Class 11 > Informatics Practices
    • 0 answers
    ANSWER

    • Posted by Rinku Kar Anisha Kar 5 years, 8 months ago

    CBSE > Class 11 > Biotechnology
    • 2 answers

    Naveen Kumar 4 years, 4 months ago

    Hi

    0Thank You

    Motive Padhai 5 years, 3 months ago

    Nerolink

    0Thank You

    ANSWER

    • Posted by Navya Naveli 5 years, 8 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Harmandeep Singh Bains 5 years, 8 months ago

    Tere ko ni aata kya????

    2Thank You

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    • Posted by Navya Naveli 5 years, 8 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Hardik Tyagi 5 years, 8 months ago

    Fe3O4

    0Thank You

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    • Posted by Nikhil Singh 5 years, 8 months ago

    CBSE > Class 11 > English Elective NCERT
    • 0 answers
    ANSWER

    • Posted by Kikim Kim 5 years, 8 months ago

    CBSE > Class 11 > Economics
    • 1 answers

    Muskan Singh ✍✍ 5 years, 8 months ago

    Hm future nhi dekhte hai...we are not astrologer....

    2Thank You

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    • Posted by K Kumar 5 years, 8 months ago

    CBSE > Class 11 > Mathematics
    • 5 answers

    Ankan Chatterjee 5 years, 8 months ago

    Khan Academy or unacademy

    0Thank You

    Hardik Tyagi 5 years, 8 months ago

    Vedantu or byju's

    0Thank You

    Yuvraj Arya 5 years, 8 months ago

    Vedantu

    0Thank You

    Muskan Singh ✍✍ 5 years, 8 months ago

    Vedantu and byjus...

    2Thank You

    Khushi Varshney 5 years, 8 months ago

    byju's is one of the sites which you can use..

    0Thank You

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