A compound of X and Y has the empirical formula XY2

A compound of X and Y has the empirical formula XY2. Its vapour density is equal to its empirical formula weight. Determine its molecular formula.

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Give a geographical reason: Jute is retted after it has been harvested

Give a geographical reason: Jute is retted after it has been harvested.

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Write any three repressive Colonial policies of the British

The Second half of the 19th century witnessed the growth of a strong feeling of Nationalism. With reference to the statement, answer the following: Write any three repressive Colonial policies of...

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The catalyst used to oxidise ammonia

Identify the substances underlined: The catalyst used to oxidise ammonia.

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Dry farming is preferred in areas with red soil

Give a geographical reason: Dry farming is preferred in areas with red soil

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Preparation of ethanol from Ethyl Chloride

Preparation of ethanol from Ethyl Chloride.

Write balanced chemical equation.

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Bassanio: A gentle scroll. - Fair lady, by your leave

Read the extract given below and answer the questions that follow:

Bassanio: A gentle scroll. - Fair lady, by your leave; [Kissing her]

I come by note, to give and to receive.
Like one of two...

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What is meant by noise pollution

What is meant by noise pollution? Name one source of sound causing noise pollution.

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Given in the box below are a set of 14 biological terms

Given in the box below are a set of 14 biological terms. Of these, 12 can be paired into 6 matching pairs. Out of the six pairs, one has been done for you as an example.

Example: endosmosis – Turgid...

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Sclerotic layer or choroid layer (Which one forms the Iris?)

Sclerotic layer or choroid layer (Which one forms the Iris?)

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What impact does the waste accumulation have on the Quality of water

What impact does the waste accumulation have on the Quality of water around us

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A Lens forms an upright and diminished image of an object

A Lens forms an upright and diminished image of an object when the object is placed at the focal point of the given lens.

  1. Name the lens.
  2. Draw a ray diagram to show the image formation.
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Lead nitrate solution is treated with sodium hydroxide solution drop wise till it is in excess

Lead nitrate solution is treated with sodium hydroxide solution drop wise till it is in excess.

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Propane burns in air according to the following equation

Propane burns in air according to the following equation:

C3H8 + 5O2 → 3CO2 + 4H2O

What volume of propane is consumed on using 1000 cm3 of air, considering only 20% of air contains oxygen?

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