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Write the name of different plant parts in which chromoplast, chloroplast and leucoplast are present.
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Name the organelles which show the analogy written as under
Digestive bag of the cell——
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Name the organelles which show the analogy written as under
Kitchen of the cell——
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How is a bacterial cell different from an onion peel cell?
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How does amoeba obtain its food?
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Which kind of plastid is more common in
- roots of the plant
- leaves of the plant
- flowers and fruits
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Name the process associated with the following
Dry ice is kept at room temperature and at one atmospheric pressure.
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Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
The allotropic form of a non-metal is a good conductor of electricity. Name the allotrope.
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Iron filings and sulphur were mixed together and divided into two parts, ‘A’ and ‘B’. Part ‘A’ was heated strongly while Part ‘B’ was not heated. Dilute hydrochloric acid was added to both Parts and evolution of gas was seen in both cases. How will you identify the gases that evolved?
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Define the term Cell inclusions.
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What is the Location of Following in the Cell : Tonoplast
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Why do plant cells possess large sized vacuole?
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Identify a member of porifera
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Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is known to form the largest number of compounds.
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Which of the following are not compounds?
- Chlorine gas
- Potassium chloride
- Iron
- Iron sulphide
- Aluminium
- Iodine
- Carbon
- Carbon monoxide
- Sulphur powder
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An element has an atomic number of 11 and its mass number is 23. What is the arrangement of electrons in the shells? State nuclear composition of an atom of the element.
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If the number of electrons in an ion Z3– is 10, the atomic number of element Z will be :
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The atomic number of an element E is 16. The number of electrons in its ion E2– will be :
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The number of electrons in an ion Y2+ is 10. The atomic number of element Y is most likely to be :
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