Question

i will give 100 poits who will say correctly ​

Answer 1

Answer:

2.Pick out the odd one from the following

(P=V²/R,P=VI,P=VR²,P=I²R)

please answer

Answer 2

Answer:

a) Ans - When a metal reacts with water, a metal hydroxide and hydrogen are formed.

For example:

Sodium reacts vigorously with water.

sodium + water ➞ sodium hydroxide + hydrogen

2Na(s) + 2H2O(l) ➞ 2NaOH(aq) + H2(g)

b)Ans - Reaction of metals with dilute acid: Metals form respective salts when react with dilute acid. Reaction of sodium metal with dilute acid: Sodium metal gives sodium chloride and hydrogen gas when it reacts with dilute hydrochloric acid.

c) Ans - When alkali (base) reacts with metal, it produces salt and hydrogen gas. Example: Sodium hydroxide gives hydrogen gas and sodium zincate when reacts with zinc metal. Sodium aluminate and hydrogen gas are formed when sodium hydroxide reacts with aluminium metal.

d)Ans - The reaction of metal carbonates and metal hydrogen carbonates with acids yield salt, carbon dioxide and water. This can be performed in the laboratory.

Explanation:

Please mark me brainliest answer