Read the following statements carefully and select the option which correctly identifies the true (T) and false (F) statements.

(i) Potassium and magnesium react vigorously with cold water.

(ii) Gold, silver and platinum are noble metals.

(iii) Most metals liberate hydrogen gas on reacting with acids.

(i) True; (ii) False; (iii) True

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(i) True; (ii) True; (iii) True

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(i) False; (ii) True; (iii) False

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(i) False; (ii) True; (iii) True

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Solution

The correct option is D (i) False; (ii) True; (iii) True

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Similar questions

Q. Read the following statements carefully and select the option that correctly identifies the true (T) and false (F) statements.

P: Metals upon reacting with oxygen produce metal oxides.
Q: All metals react with cold water.
R: Metals produce oxygen when they react with acid as well as base.
S: Gold upon reacting with bases produces hydrogen gas and metal salt.

Q. Statement I: Hydrogen gas is not evolved when zinc granules react with cold water.

Statement II: Magnesium reacts vigorously with hot water to produce magnesium hydroxide and hydrogen gas.

Q. Statement I:- Hydrogen gas is not evolved when zinc reacts with cold water.

Statement II:- Sodium reacts vigorously with cold water to produce sodium hydroxide and hydrogen gas.

Q. A noble metal is one which is inert and does not react with acids like

H C l, H N O_{3}, H_{2} S O_{4}

. Select an option with a set of two noble metals.

A noble metal is one which is inert and does not react with acids like $H C l, H N O_{3}, H_{2} S O_{4}$ . Select an option with a set of two noble metals.

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