हिंदी

Formalin, Iodine, DDT, Lime

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प्रश्न

Formalin, Iodine, DDT, Lime

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उत्तर

Odd Term – Lime
Formalin, iodine and DDT are chemical substances.

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2016-2017 (March) Set 1

संबंधित प्रश्न

The following statement is about photosynthesis in a green plant. Write whether it is True or False.

Land plants obtain their carbon dioxide from the atmosphere.


Choose the correct answer:
The process of photosynthesis occurs by _________


The number of water molecules required in the chemical reactions to produce one molecule of glucose during photosynthesis is


Name the following:

The tissue that transports manufactured type of starch from leaves to all parts of the plants.


A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.

Describe step by step, how the candidate proceeded to test the leaf for the presence of starch?


Complete the following food chain by writing the names of appropriate organisms in the blanks:

 __________ → Mouse → _________ → Peaock


Choose the Correct Answer:
Which one of the following would not be a limiting factor for photosynthesis?


Choose the correct option.

In maize and wheat, the first stable products formed in bundle sheath cells respectively are ________.


Fill in the blank by rearranging the letter in the bracket.

During photosynthesis plants releases _________ (egxyno).


Higher Order Thinking Skill.

Imagine that student A studied the importance of certain factors in photosynthesis. He took a potted plant and kept it in dark for 24 hours. In the early hours of the next morning, he covered one of the leaves with dark paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.

  1. What aspect of photosynthesis was being investigated? 
  2. Why was the plant kept in the dark before the experiment? 
  3. How will you prove that starch is present in the leaves?
  4. Name the raw materials needed for photosynthesis.

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