Class X_16 May_Chemical Reactions and Equations

Class X_16 May_Chemical Reactions and Equations

10th Grade

17 Qs

quiz-placeholder

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Class X_16 May_Chemical Reactions and Equations

Class X_16 May_Chemical Reactions and Equations

Assessment

Quiz

Chemistry

10th Grade

Medium

Created by

Himanshu Ranjan

Used 1+ times

FREE Resource

17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blanks:

Magnesium ribbon burns with a dazzling white flame and changes into a ---------------- powder. This powder is magnesium oxide.

white

red

blue

green

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When metals react with acids hydrogen gas is released. However, with nitric acid metals react to form water instead of hydrogen. This is because

nitric acid is strong

nitric acid is reducing in nature

nitric acid is oxidising in nature

nitric acid is weak

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fe3O4 occurs in nature as the mineral "-----------------"

Haematite

Iron pyrite

Wustite

Magnetite

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

100 ml of hydrogen gas reacts with 50 ml of oxygen gas. The volume of water vapour formed is ------------

100 ml

150 ml

125 ml

200 ml

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1 atm =

1 Pa

105 Pa

760 Pa

1.01325 x 105 Pa

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following metals shall not react with cold water?

Potasium

Lead

Sodium

Calcium

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Slaked lime is formed by mixing quick lime in water. The reaction is

Exothermic

Endothermic

Energy is neither released nor absorbed

None

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