1 Answers
Call
Talk Doctor Online in Bissoy App
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.
1 Answers 1 views
Assertion (A) : Synthetic detergents can lather when in hard water.Reason (R) : Synthetic detergents form soluble calcium and magnesium salts with hard water.?
Answer: Option 1 Both A and R is true and R is the correct explanation of A.
1 Answers 1 views
When dilute aqueous solutions of two salts are mixed, the process is associated with?
Answer: Option 2 According to the first law of thermodynamics $$\delta Q = dU + \delta W$$ So, as there is no heat exchange and assuming no work is done $$w$$...
1 Answers 1 views
Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.?
Answer: Option 3 Let'
1 Answers 1 views
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....
1 Answers 1 views
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...
1 Answers 1 views
What will be the output of the following PHP code <php $str = "Hello! My name is Cameron Fox. Coffee" $find = array('/is/','/coffee/'); $replace = array('/was/','/tea/'); echo preg_replace ($find, $replace, $str); >?
Answer: Option 4 Coffee was not replaced because the preg_replace function is case sensitive. Therefore it treats coffee and Coffee differently.
1 Answers 1 views
Which one of the following acids is used in battery ?
Answer: Option 3 The formation of the lead sulphate products involves sulphuric acid, which is the electrolyte used in these batteries. During battery charge, lead sulphate is converted back to...
1 Answers 1 views
Which of the following acids serves as an electrolyte in a lead storage battery?
Answer: Option 1 A 38% solution of sulphuric acid is used as an electrolyte in lead-acid battery.
1 Answers 1 views
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...
1 Answers 1 views