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  • 1 answers

Tittu Sharma 5 years, 9 months ago

It is waste material of our body
  • 2 answers

Akash Deep 6 years, 4 months ago

Why

Chinmay P 6 years, 10 months ago

No
  • 1 answers

Yogita Ingle 6 years, 10 months ago

a2 + 6a - 91
= a2 + 13a - 7a - 91
= a( a+ 13) - 7(a + 13)
= (a + 13) (a - 7)

  • 1 answers

Palak Gambhir 6 years, 10 months ago

Email is a method of exchanging digital messages over a communication network such as internet.. Gmail is an email service provider by Google. It is a platform to send and receive emails.
  • 1 answers

Ritesh Kumar 6 years, 10 months ago

Go to bakery and ask to the shookeeper
  • 1 answers

Chinmay P 6 years, 10 months ago

Protozoa, bacteria, fungi, algae, virus
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  • 1 answers

Yogita Ingle 6 years, 10 months ago

Electricians avoid electrical repairing during rainy season especially outdoor because rain water composed of certain percentage of dissolved salt making it conductive. This may causes electric shock and harm electrician while working outdoor during heavy downpours.

  • 1 answers

Meghna Thapar 5 years, 6 months ago

Glucose (sugar) readily dissolves in water, but because it does not dissociate into ions in solution, it is considered a nonelectrolyte; solutions containing glucose do not, therefore, conduct electricity. “nonelectrolyte.” A nonelectrolyte is a compound that does not conduct an electric current in either aqueous solution or in the molten state. Many molecular compounds, such as sugar or ethanol, are nonelectrolytes. When these compounds dissolve in water, they do not produce ions.

  • 1 answers

Yogita Ingle 6 years, 10 months ago

The presence of ions in liquid causes the flow of current. Current is defined as the rate of change of charge and ions are charged species. The ions carrying positive charge charge are called cations and those carrying negative charge are called anions. So when the ions present in a solution move, current flows in the solution.

  • 1 answers

Yogita Ingle 6 years, 10 months ago

An electrolytic cell is a device which converts electric energy into chemical energy ..anode is the positive electrode and it gets its name as anode because anions migrate towards it.

  • 1 answers

Yogita Ingle 6 years, 10 months ago

It is the process of refining of metal in which impure metal is made the anode and a thin strip of pure metal is made the cathode. A solution of metal salt is used as an electrolyte. The apparatus is shown in the figure given below. When electric current is passed through the electrolyte, the impure metal from the anode is dissolved in the electrolyte and an equal amount of pure metal from the electrolyte is deposited on the cathode. The soluble impurities go into the solution whereas the insoluble impurities settle down at the bottom of the anode which is known as anode mud. Following diagram shows the electrolytic refining of copper in which anode is impure copper and cathode is thin strip of pure copper while the electrolyte used is the copper sulphate solution.

  • 1 answers

Yogita Ingle 6 years, 10 months ago

Electrolysis of common salt solution: When electricity is passed through the salt solution, four types of ions, ie, sodium, chlorine, hydrogen, hydrogen ions are produced. Hydrogen ions discharge at cathode whereas chlorine ions are discharged at the anode. Now if the electrodes are immersed in water and current is passed, bubbles of oxygen gas is liberated at cathode
                                       

  • 1 answers

Yogita Ingle 6 years, 10 months ago

When electric current is passed through a conducing solution, some chemical reaction takes place in the solution. This is called chemical effect of electric current. Some of the chemical effects of electric current are as follows:

  • Bubbles of gas may be formed at electrodes.
  • Deposits of metal may be seen on electrodes.
  • Change of colour of solution may occur.
  • 1 answers

Randeep Bhola 6 years, 10 months ago

Va gana gate ha
  • 1 answers

Neharika Varshney 6 years, 10 months ago

What do in this que ???
  • 1 answers

Tripti Sengar 6 years, 10 months ago

U don't know the answer
  • 1 answers

Pavan Reddy 6 years, 10 months ago

Let the present ages of Hari and Harry be 5x and 7x respectively. 4 years later age of Hari = (5 x + 4) years and age of Harry = (7 x + 4 )years according to the question (5 x + 4):(7x+4)=3:4=X + 4 ÷7 x + 4=3 by 4. 3(7 X + 4) = 4(5 X + 4). 21 X + 12 = 20 X + 16. 12 x - 20 X = 16 -12=4 Therefore present age of Harry Is equals to 5 x is equals to 5 x into 4 is equals to 20 years and present age of Harry Is equals to 7 x is equals to 7 into 4 is equals to 28 years
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  • 1 answers

Prathiksha Prabakaran 6 years, 10 months ago

Sodium reacts with oxygen more vigoursly than phosphorus
  • 1 answers

Neharika Varshney 6 years, 10 months ago

72degree is neasure of each exterior angle
  • 1 answers

Meghna Thapar 5 years, 11 months ago

Copper bottomed utensils are made up for cooking because copper is an excellent conductor of heat and have the highest thermal conductivity,

  • 1 answers

Neharika Varshney 6 years, 10 months ago

They hve the property of sonrousity in which ringing sound is produce when hit with any other metal
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  • 2 answers

#Joel Wilson 6 years, 10 months ago

Perimeter = (perimeter of rectangle + perimeter of both semicircle) - 14

#Joel Wilson 6 years, 10 months ago

Area =area of rectangle + are of both semicircle
  • 1 answers

#Joel Wilson 6 years, 10 months ago

8x + 4 = 3x - 1 + 7 = 8x + 4 = 3x + 6 8x - 3x = 6 - 4 5x = 2 x = 2/5

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