Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

MEDIUM

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Zinc oxide is said to have amphoteric nature, but sodium oxide is not because

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Important Questions on Analytical Chemistry

EASY

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Which of the following combinations will produce

H_{2}

gas?

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

The oxide which is used as white pigment :

EASY

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Which of the following dissolves in a hot concentrated solution of

NaOH

?

EASY

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Balance the following equation.

ZnO (S) + HCl (l) \to {ZnCl}_{2} (aq) + H_{2} O (l)

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Name a metallic oxide soluble in excess of caustic soda solution.

EASY

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Balance the following equation.

ZnO (S) + NaOH (aq) \to {Na}_{2} {ZnO}_{2} (aq) + H_{2} O (l)

.

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Zinc on reaction with

NaOH

gives a salt

(A)

along with a gas

(X)

and

(A)

on reaction with a gas

(Y)

gives white precipitate

(W)

. Which of the following is correct?

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Philosopher's wool on heating with

BaO

at

1100 ° C

produces

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Name a white metal oxide that dissolves when fused with caustic soda or caustic potash.

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Rinman's green is used as a blue pigment.

HARD

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

_____ is used as a green pigment.

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Name a white insoluble oxide that dissolves when fused with caustic soda or caustic potash.

EASY

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Which of the following is an amphoteric oxide?

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Name a white, insoluble oxide that dissolves when fused with caustic soda or caustic potash.

EASY

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

The compound which reacts with both

HCl

and

NaOH

is

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Zinc oxide is used as a white pigment.

EASY

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

_____ is an amphoteric oxide.

(Zinc oxide / MgOH)

EASY

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Cotyledons are also called-

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Represent the union of two sets by Venn diagram for each of the following.

$X = {x | x$ is a prime number between $80$ and $100}$

$Y = {y | y$ is an odd number between $90$ and $100}$

EASY

Science>Chemistry>Analytical Chemistry>Action of Alkalis on Metal Oxides and Metal Hydroxides

Name the following:

A base that is amphoteric in nature.