Q2 What is the role of acid in our stomach?
Q3 State the rule which gives the direction of the induced current?
Q4What are the two properties of carbon which lead to the huge nu
see around us ?
Q5 a)Define 1 dioptre of power of lens?
b) The refractive index of diamond is 2.42. What is the meaning
Q6Write the balanced chemical equations for the following reactions
(a) Calcium hydroxide + Carbon dioxide > Calcium carbonate + Water
(b) Zinc + Silver nitrate → Zinc nitrate + Silver
Answers
Answer:
- acid helps to digest the food
Answer:
2
The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria. The mucus covers the stomach wall with a protective coating.
3
When a conductor such as a wire attached to a circuit moves through a magnetic field, an electric current is induced in the wire due to Faraday's law of induction. ... Fleming's right-hand rule gives which direction the current flows
4
The two properties of carbon which lead to the huge number of carbon compounds we see around us are Catenation and Tetravalence. Explanation: It can form a 'covalent bond' by combining with other carbo
5
one dioptre of power of a lens is described as the unit of measurement of the optical power of a lens or curved mirror equivalent to the reciprocal of focal length (f). ... The SI unit of power of lens is dioptre whose focal length is one meter, which is denoted by the letter D.
6
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