Chemistry Quiz for Grade 7
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On the other hand, repeated practice will ensure your grip for the best preparation.
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I carefully picked the most repeated but important Chemistry MCQs of Grade 7.
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Chemistry Quiz for Grade 7 Instructions:
- There will be 30 multiple choice questions in this Quiz.
- Answers to the questions will change randomly each time you start this Quiz.
- Practice this Quiz at least three times to secure High Marks.
- You can see your scores and ratings at the end of the Quiz.
- If you found any incorrect answers in the Quiz, click on the quiz title and comment on that MCQ so our team can update the incorrect answer on time.
- Question of
Which of the following is a plant fibre?
- all pf them
- Cotton
- Coir
- Jute
- Question of
We can use ______ to obtain silk thread from cocoons.
- Reeling
- Sorting
- Scouring
- All of the above
- Question of
Which of the following fibre is made of protein?
- Silk
- Wool
- Jute
- None of them
- Question of
Which of the following is a base?
- Window cleaner
- Amla
- Vinegar
- Curd
- Question of
Which of the following is not an indicator that occurs naturally?
- Phenolphthalein
- Litmus
- Turmeric
- Gudhal
- Question of
Which one of the following fruits contains ascorbic acid?
- Amla
- Unripe mangoes
- Grapes
- Spinach
- Question of
Which of the following indicators are typically found as strips?
- Litmus
- Turmeric
- China Rose
- All of the above
- Question of
How will the addition of turmeric affect the colour of lime water?
- The solution becomes red in colour
- The solution becomes blue in colour
- The solution becomes yellow in colour
- The solution becomes pink in colour
- Question of
Which of the following is the outcome of a neutralisation reaction?
- A salt
- A solution
- A mixture
- A acid and base mixture
- Question of
Why is organic matter added to the soil?
- Because organic matter releases acids in the soil
- Because organic matter is basic in nature
- Due to the neutral nature of organic matter
- Because organic matter is crucial for soil.
- Question of
Which of the following acids is formed when carbon dioxide is dissolved in raindrops?
- Carbonic acid
- Hydrochloric acid
- Oxalic acid
- Formic acid
- Question of
Which of the following describes the process of depositing a zinc layer on iron?
- Galvanisation
- Crystallisation
- Rusting
- None of them
- Question of
Which of the following are stainless steel constituents?
- Iron, Nickel, Carbon, Manganese, Chromium
- Carbon, Iron, Nickel
- Iron, Carbon, Nickel, Chromium
- Iron, Nickel, Manganese
- Question of
Which of the following is not a chemical change characteristic?
- Change in state
- Change in colour
- Production of sound
- Change in smell
- Question of
What kind of change occurs when the tip of the blade is placed on a gas stove?
- Physical change
- Chemical change
- No change
- Irreversible change
- Question of
Which of the following does not represent a chemical change?
- Freezing of water
- Burning of leaves
- Fermentation of grapes
- Turning brown of freshly cut banana
- Question of
When food spoils, it emits a foul odour as a result of a chemical change. What is the name given to this process?
- Rancidity
- Rusting
- Crystallization
- Corrosion
- Question of
Which of the following is not a freshwater resource?
- Ocean
- Groundwater
- River
- None of them
- Question of
Which of the following does not help in replenishing groundwater?
- All of them
- Deforestation
- Increasing population
- Industries
- Question of
A substance causing pollution is known as _______.
- Pollutant
- Water table
- Hail
- None of them
- Question of
Water exists in ______ states.
- One
- Two
- Three
- Four
- Question of
Which of the following statements is not correct?
- Trees are not an essential element of the environment
- Forest help to prevent soil erosion
- Forest is a renewable resource
- Trees help regulate the climate
- Question of
Which of the following increases the carbon dioxide level in the atmosphere?
- Deforestation
- Afforestation
- Social forestry
- None of them
- Question of
Which of the following is used to make paint?
- Resin
- Latex
- Both resin and latex
- None of them
- Question of
Which of the following is a scavenger?
- All of them
- Jackal
- Vulture
- Crow
- Question of
Which organism converts human excreta into vermi-cakes in vermi processing toilets?
- Earthworms
- Bacteria
- Microorganisms
- None of them
- Question of
Which of the following settles as a solid in the bottom during wastewater treatment?
- Sludge
- Sewage
- Litter
- All of them
- Question of
What do we call the network of big and small pipes carrying wastewater?
- Sewerage
- Sewer
- Sewage
- None of them
- Question of
Which of the following are the characteristics of wastewater?
- All of them
- Rancid taste
- Offensive smell
- Dirty look
- Question of
Which of the following is a stage in wastewater treatment?
- All of the above
- Filtration
- Aeration
- Chlorination