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Ask QuestionPosted by Charvi Sangwan 5 years, 4 months ago
- 3 answers
Yogita Ingle 5 years, 4 months ago
Ammeter is connected in series in a circuit whereas voltmeter is connected in parallel.
Izaan Tamboli 5 years, 4 months ago
Posted by Charvi Sangwan 5 years, 4 months ago
- 4 answers
Gaurav Seth 5 years, 4 months ago
We know that the charge on an electron is negative and it is -1.6⨯10-19 coulomb.
We need to calculate the number of electrons constituting one coulomb of charge.
e = 1.6 × 10-19 C
Total charge required for 1Coulomb.
∴ q = 1C……….(1)
The formula to calculate the charge is
q = ne
where
q = charge
e = number of electrons
n = q/e……….(2)
Substituting equation (1) in equation (2) we get
n = 1/(1.6 × 10-19)
n = 6.25 × 1018 electrons ≅ 6 × 1018 electrons
So 1 Columb of charge contains 6 × 1018 electrons.
Posted by Laxmipriya Nayak 5 years, 4 months ago
- 2 answers
Ishan Chahaliya 5 years, 4 months ago
Gaurav Seth 5 years, 4 months ago
lens is made up of two such transparent mirrors , hence when we consider its principle focus both of them are considered. also if the lens has only one focus then a ray diagram is not possible as when the incident ray is at infinity then the light rays cannot converge at the focus of the lens( which is before the lens or on its left side) as the lens undergoes refraction and not reflection.
Posted by Anushka Gurjar 5 years, 4 months ago
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Posted by Anushka Gurjar 5 years, 4 months ago
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Preeti Sehgal 5 years, 4 months ago
Aastha Barbate 5 years, 4 months ago
Posted by Yatin Jaat 5 years, 4 months ago
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Posted by Sneha Patil 5 years, 4 months ago
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Sneha Patil 5 years, 4 months ago
Posted by Satyam Lodhi Rajput 5 years, 4 months ago
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Shaili Shree 5 years, 4 months ago
Charvi Sangwan 5 years, 4 months ago
Posted by Satyam Lodhi Rajput 5 years, 4 months ago
- 1 answers
Gaurav Seth 5 years, 4 months ago
The majority of acids are weak. On average, only about 1 percent of a weak acid solution dissociates in water in a 0.1 mol/L solution. Therefore, the concentration of H+ ions in a weak acid solution is always less than the concentration of the undissociated species, HA. Examples of weak acids include acetic acid (CH3COOH), which is found in vinegar, and oxalic acid (H2C2O4), which is found in some vegetables.
Posted by Satyam Lodhi Rajput 5 years, 4 months ago
- 4 answers
Sneha Patil 5 years, 4 months ago
Posted by Satyam Lodhi Rajput 5 years, 4 months ago
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Chahat Modi 5 years, 4 months ago
Posted by Satyam Lodhi Rajput 5 years, 4 months ago
- 2 answers
Chahat Modi 5 years, 4 months ago
Posted by Satyam Lodhi Rajput 5 years, 4 months ago
- 3 answers
Shivam Vishwakarma 5 years, 4 months ago
Posted by Satyam Lodhi Rajput 5 years, 4 months ago
- 2 answers
Posted by Satyam Lodhi Rajput 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
It is formed through a natural process. When sulphide mineral in the rock oxidizes, sulphuric acid is formed. Sulphuric acid is strongly acidic. Therefore, it is used in cleaning of metals, removal of impurities from oil, manufacturing of chemicals – nitric acid, hydrochloric acid, synthesis of dye, drugs, detergents explosives etc. Below are the four important uses of sulphuric acid in various ways:
- Sulphuric acid uses at home
- Sulphuric acid uses in industry
- Sulphuric acid uses drugs
- Sulphuric acid on skin
Posted by Satyam Lodhi Rajput 5 years, 4 months ago
- 3 answers
Posted by Shaili Shree 5 years, 4 months ago
- 2 answers
Ayush Lala 5 years, 4 months ago
Posted by Aditya Kumar 5 years, 4 months ago
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Abhimanyu Kumar 5 years, 4 months ago
Posted by Megha Choudary 5 years, 4 months ago
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Posted by Arumugam Arumugam 5 years, 4 months ago
- 2 answers
Gaurav Seth 5 years, 4 months ago
An aluminium atom (2,8, 3) loses 3 electrons to achieve noble gas configuration of neon gas and forms an aluminium cation (2,8) having three positive charges
An oxygen atom (2,6) attains noble gas configuration of neon gas after accepting two electrons and forms an oxide anion with two negative charges. As the final compound is electrically neutral, the positive charges in aluminium oxide compound must be balanced by equal number of negative charges. This is possible when 2 aluminium cations (6* charge) combine with 3 oxide anions (6 charge).
Thus, the ratio between aluminium cations and oxygen anions to form aluminium oxide is 2:3. This is indicated by the chemical formula 2Al3+ +302- -->Al203.
Posted by Anjali Gupta 5 years, 4 months ago
- 4 answers
Shivam Vishwakarma 5 years, 4 months ago
Bhoomi Sharma 5 years, 4 months ago
Yogita Ingle 5 years, 4 months ago
Magnesium ribbon should be cleaned with sandpaper before burning in the air because of the following reasons:
- Magnesium very reactive element which rapidly reacts with oxygen in the air to form a white layer of magnesium oxide and this layer will not burn.
- To remove the Magnesium oxide layer from the ribbon which may prevent or slow down the burning of
- magnesium ribbon.
- Unwanted impurities deposited on the magnesium ribbon can be removed and only pure magnesium can be used for the reaction.
Pushti Bhardwaj 5 years, 4 months ago
Posted by Anjali Gupta 5 years, 4 months ago
- 1 answers
Yogita Ingle 5 years, 4 months ago
Respiration – The energy required by our body to stay active is provided by the food which we eat. During digestion, food particles are broken down into simpler substances. For example, wheat, rice, potatoes etc all contain carbohydrates. These carbohydrates are broken down into simpler substances called glucose. The glucose on combustion with oxygen gives CO2 gas, H2O and evolves heat. This reaction is called Respiration.
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy
Respiration is a very special form of burning fuel. It involves the burning of sugar with oxygen within the cells of every living organism, to produce the energy needed for all the reactions of life along with water and carbon dioxide as waste products. Respiration is another exothermic reaction.
Posted by Khushi Gangwani 5 years, 4 months ago
- 1 answers
Bhoomi Sharma 5 years, 4 months ago
Posted by Garima Patel 5 years, 4 months ago
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Chahat Modi 5 years, 4 months ago
Posted by Akash Bajantri 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
Download CBSE class 10th revision notes for Chapter 6 Life Processes in PDF format for free. Download revision notes for Life Processes class 10 Notes and score high in exams. These are the Life Processes class 10 Notes prepared by team of expert teachers. The revision notes help you revise the whole chapter in minutes. Revising notes in exam days is on of the best tips recommended by teachers during exam days.
Revision Notes for Class 6 Science <a href="https://mycbseguide.com/downloads/cbse-class-10-science/1176/">Download as PDF</a>
Posted by Shailaja Devireddy 5 years, 4 months ago
- 3 answers
Khush Kaur 5 years, 4 months ago
Bhoomi Sharma 5 years, 4 months ago
Gaurav Seth 5 years, 4 months ago
Human beings are multicellular organisms having a complex body structure. The oxygen requirement in multicellular organisms cannot be met by diffusion because-
1) Diffusion is a slow process.
2) In multicellular organisms, the cells are not in direct contact with the outside environment as in unicellular organisms.
Therefore, in human beings, there are specialized tissues and organs that help to meet the oxygen requirements of the body.
Posted by Ashish Hirgond 5 years, 4 months ago
- 0 answers
Posted by Suryansh Singh 5 years, 4 months ago
- 1 answers
Gaurav Seth 5 years, 4 months ago
Ambulance is usually in a hurry. In order to convey the vehicle in front that it is an ambulance, it is written laterally inverted. When the driver of the vehicle in front reads through the rear-view mirror, the Image of this inscription, through lateral inversion, form a right oriented image.
Posted by Pranshu Singh 5 years, 4 months ago
- 1 answers
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Suma R 5 years, 4 months ago
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