PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 11 - Inorganic Chemistry in the Laboratory and in Industry>EXERCISE>Q 7

EASY

10th West Bengal Board

IMPORTANT

Earn 100

Formula of aqua fortis is .

(A) ${HNO}_{3}$ (B) $HCl$ (C) $H_{2} {SO}_{4}$

Enter your correct answer as A, B or C.

50% studentsanswered this correctly

Important Questions on Inorganic Chemistry in the Laboratory and in Industry

EASY

10th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 11 - Inorganic Chemistry in the Laboratory and in Industry>EXERCISE>Q 9

A mixture of

K_{2} O

and

{Al}_{2} O_{3}

used in Haber's process acts as _____.

EASY

10th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 11 - Inorganic Chemistry in the Laboratory and in Industry>EXERCISE>Q 10

Formula of sal ammoniac is _____.

$A . NaOH$

$B . {NH}_{4} Cl$

$C . {NH}_{4} {NO}_{3}$

(Enter your correct answer as $A, B or C$ )

EASY

10th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 11 - Inorganic Chemistry in the Laboratory and in Industry>EXERCISE>Q 11

When phenolphthalein is added to ammonia solution the colour is _____.(yellow/pink)

EASY

10th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 11 - Inorganic Chemistry in the Laboratory and in Industry>EXERCISE>Q 1

Ammonia gas is heavier than air.

EASY

10th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 11 - Inorganic Chemistry in the Laboratory and in Industry>EXERCISE>Q 2

Ammonia gas is dried by

P_{2} O_{5}

.

EASY

10th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 11 - Inorganic Chemistry in the Laboratory and in Industry>EXERCISE>Q 3

Alkaline solution of mercuric iodide is known as Nessler's reagent.

EASY

10th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 11 - Inorganic Chemistry in the Laboratory and in Industry>EXERCISE>Q 4

Liquid ammonia is known as liquor ammonia.

EASY

10th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 11 - Inorganic Chemistry in the Laboratory and in Industry>EXERCISE>Q 5

H_{2} S

gas is dried by passing through silica-gel.