Class 7 Online Courses

Chapter 8: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 8

Elements and Compounds Quiz Questions and Answers PDF - 3

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Elements and Compounds Questions & Answers PDF Download: MCQ Quiz 3

MCQ 11: When iron and sulphur are mixed together at room temperature there is lack of

A) reaction
B) production of new product
C) mixed reaction
D) both a and b

MCQ 12: Due to temperature sensitivity the element which is filled in thermometer, is

A) mercury
B) copper
C) helium
D) oxygen

MCQ 13: Heating, exposing to light or passing electricity will only let to decompose

A) element
B) compound
C) mixture
D) liquid

MCQ 14: A substance which cannot be broken into further simpler substance by any chemical reaction is called

A) element
B) compound
C) mixture
D) solution

MCQ 15: Nitric acid is combined with oxygen to produce brown fume of

A) nitrogen oxide
B) nitrogen dioxide
C) carbon dioxide
D) nitrogen

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Elements and Compounds App (Android & iOS)

Elements and Compounds App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)