Class 7 Science MCQs - Chapter 22
Solutions Quiz Questions & Answers PDF Download - 15
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The Quiz: A ph scale ranges from zero to; "Solutions" App (iOS, Android) with answers: 6; 10; 11; 14; to study online schools courses. Study Acids and Alkalis MCQ Questions, download Amazon eBook (Free Sample) for online elementary school.
Solutions Exam Questions and Answers PDF Download: Test 15
A ph scale ranges from zero to
- 10
- 6
- 11
- 14
For removing paints and dyes 'caustic potash' is used. Its scientific name is
- potassium hydroxide
- sodium hydroxide
- magnesium carbonate
- magnesium hydroxide
The 'pH' of rain water is slightly
- acidic
- basic
- neutral
- alkali
A scale which is used to measure hoe acidic or alkaline is called
- indicator
- pH scale
- pH meter
- balance scale
If the color, density, appearance and other physical and chemical properties are the same, solution is called
- heterogeneous
- homogenous
- saturated
- unsaturated
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