Match the following : Oxide Nature (a) CO (i) Basic (b) BaO (ii) Neutral (c) Al 2 O 3 (iii) Acidic (d) Cl 2 O 7 (iv) Amphoteric Which of the following is correct option?

(a)-(ii); (b)-(i); (c)-(iv); (d)-(iii)

(a)-(iii); (b)-(iv); (c)-(i); (d)-(ii)

(a)-(iv); (b)-(iii); (c)-(ii); (d)-(i)

(a)-(i); (b)-(ii); (c)-(iii); (d)-(iv)

EASY

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Give the reaction of magnesium with boiling water or steam.

Important Questions on Periodicity

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

The acidic, basic and amphoteric oxides, respectively, are

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

In the following sets of reactants which two sets best exhibit the amphoteric character of Al₂O₃ . xH₂O ?

\begin{matrix} Set I & {Al}_{2} O_{3} \cdot {xH}_{2} O_{(s)} + {OH}_{(aq)}^{-} \\ Set II & {Al}_{2} O_{3} x \cdot H_{2} O_{(s)} + H_{2} O_{(l)} \\ Set III & {Al}_{2} O_{3} x \cdot H_{2} O_{(s)} + H_{(aq)}^{+} \\ Set IV & {Al}_{2} O_{3} \cdot {xH}_{2} O_{(s)} + {NH}_{3 (aq)} \end{matrix}

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

The metal that gives hydrogen gas upon treatment with both the acid as well as the base is

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Which among the following oxides is the most basic?

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Write a chemical equation for the reaction taking place in the test tube. How does the colour of the solution change? What is the change in colour of iron nails?

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EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Match the following :

Oxide	Nature
(a) $CO$	(i) Basic
(b) $BaO$	(ii) Neutral
(c) ${Al}_{2} O_{3}$	(iii) Acidic
(d) ${Cl}_{2} O_{7}$	(iv) Amphoteric

Which of the following is correct option?

HARD

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

The option(s) with only amphoteric oxides is(are):

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Identify the element that forms amphoteric oxide:

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

What is the gas liberated when the metals react with dilute acids?

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Which of the following metal in combination with oxygen would yield basic metal oxide?

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Identify the correct order of electronegativity for

Mg, B, Si

and

S

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be-

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Identify the correct statement from the following.

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Three elements

X, Y

and

Z

are in the

3^{rd}

period of the periodic table. The oxides of

X, Y

and

Z

, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of

X, Y

and

Z

is:

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

{SiO}_{2}

is attacked by which one/ones of the following?

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

The gas evolved on heating

{CaF}_{2}

and

{SiO}_{2}

with concentrated

H_{2} {SO}_{4}

, on hydrolysis gives a white gelatinous precipitate. The precipitate is:

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

{Zn}_{(s)} + {CuSO}_{4 (aq)} \overset{}{\to} {ZnSO}_{4 (aq)} + {Cu}_{(s)}

. What type of chemical reaction is shown in the above equation?

HARD

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Differentiate between metals and non-metals on the basis of their chemical properties.

MEDIUM

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

Choose the acidic oxides, basic oxides and neutral oxides from the following:

N a_{2} O; C O_{2}; C O; S O_{2}; M g O; N_{2} O; H_{2} O .

EASY

Chemistry>Inorganic Chemistry>Periodicity>Effect of Water on Oxides and Hydroxides of Period 3 Elements

What is your observation in the following case:

Burning of magnesium in air.

Give the reaction of magnesium with boiling water or steam.

Important Questions on Periodicity

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