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Distilled Water Properties Quiz

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Questions and Answers

What is the nature of distilled water?

Alkaline

Neutral (correct)

Basic

Acidic

How can the neutrality of distilled water be tested?

Using pH paper

Using universal indicator

Using a conductivity meter

Using red and blue litmus paper (correct)

What happens to the color of red and blue litmus paper when dipped in distilled water?

Becomes colorless

Turns blue and red respectively

Remains unchanged (correct)

Turns red and blue respectively

What is the primary purpose of photosynthesis?

To convert light energy into chemical energy Signup and view all the answers

Which organisms are referred to as photoautotrophs?

Plants, algae, and cyanobacteria Signup and view all the answers

What is the byproduct of oxygenic photosynthesis?

Oxygen Signup and view all the answers

What do some bacteria use as a reductant in anoxygenic photosynthesis?

Hydrogen sulfide Signup and view all the answers

Which pigment is used by archaea like Halobacterium in non-carbon-fixing anoxygenic photosynthesis?

Retinal and its microbial rhodopsin derivatives Signup and view all the answers