- Both A and R is true and R is the correct explanation of A
- Both A and R is true but R is not a correct explanation of A
- A is true but R is false
- A is false but R is true
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What is the correct decreasing order of the share of different salts in sea water?
Answer: Option 1 The correct decreasing order of the share of different salts in sea water are Sodium chloride, magnesium chloride, magnesium sulphate, potassium sulphate.
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Assertion (A): A p-n junction has high resistance in reverse direction.Reason (R): When a reverse bias is applied to p-n junction, the width of depletion layer increases.?
Answer: Option 1 Let'
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Assertion A: When rock conditions are favorable, it will not be necessary to take up concrete lining concurrently with the driving operations till the full length of the tunnel has been driven through rock.Reason R: A tunnel through rock, hard or soft, does not need any concrete liningSelect your answer based on the coding system given below:?
Answer: Option 3 Let'
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When water freezes in the polar seas the salts ________?
Answer: Option 2 When water freezes in the polar seas the salts remain in the subsurface water that does not freeze. Seawater of typical saltiness freezes at about -1.8 °C....
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Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land?
Answer: Option 2 Salinization on the irrigated land makes some soils impermeable. Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. It makes...
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Hard disks are formatted in the same manner as floppy disks. However, before a hard disk can be formatted, it must first be _____?
Answer: Option 1 Partitioning this is simply a virtual division of a drive or disk into two or more volumes and defining how much space can be allocated to a...
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Which of the following will replace hydrogen from acids to form salts ?
Answer: Option 2 According to the reactivity series , elements which are above of hydrogen can replace hydrogen. Hence Sodium will replace hydrogen from acids to form salts.
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Which of the following is not soluble in water ?
Answer: Option 2 Zinc sulphate is not soluble in water.
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Which of the following vitamins are water soluble?
Answer: Option 2 The water-soluble vitamins include ascorbic acid (vitamin C), thiamin, riboflavin, niacin, vitamin B6 (pyridoxine, pyridoxal, and pyridoxamine), folacin, vitamin B12, biotin, and pantothenic acid.
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The water and mineral salts are transported to the various organs by which of the following?
Answer: Option 1 Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and...
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