Bissoy.com
Doctors Medicines MCQs Q&A

A is the oxide obtained by burning sulphur powder. B is a white powder obtained after burning a magnesium strip. Then which among the following conclusion is correct.

A is the oxide obtained by burning sulphur powder. B is a white powder obtained after burning a magnesium strip. Then which among the following conclusion is correct. Correct Answer A turns litmus red and B turns litmus Blue.

Explanation:

  • Metallic oxides are basic in nature and non - metallic oxides are acidic in nature. 
  • Acid turns litmus paper red while base turns blue. 
  • Sulphur is a non - metal. Sulphur after burning forms sulphur oxide which is acidic in nature.
  • So, A is acidic and it will turn litmus paper red. 
  • Magnesium is a metal which on combustion gives magnesium oxide. 
  • This is a basic oxide and hence turns litmus paper blue. 
  • So, B is basic and will turn litmus paper blue. 

'A turns litmus red and B turns litmus Blue' is the correct option. 

Additional Information

  • While performing an experiment of the burning of sulphur, the gas is kept in a tumbler. The water is added to it. Then the solution is tested for litmus test.
  • Magnesium oxide is also dissolved in water and then tested with litmus paper. 
  • Sulphur dioxide on mixing with water forms Sulphurous acid. 

SO2 (g) + H2O (l) → H2SO3 (aq)

Related Questions

In the following question, two statements are numbered as A and B. On solving these statements we get quantities A and B respectively. Solve for the both quantities and choose the correct option. Quantity A: Two powders P and Q are to be mixed in ratio 4 ∶ 7 to form a mixture. If 28 kg of powder P and 28 kg of powder Q is available, how much powder Q is more required to make the desired mixture? Quantity B: A mixture is formed by mixing 16 kg of powder X and 25 kg of powder Y. How much powder X is required to be mixed with 40 kg of powder Y to make a mixture of the same ratio?
An alloy of zinc, magnesium, and copper contains 80% of copper, 15% of zinc, and 5% of magnesium. The second alloy of copper and magnesium only is melted with the first and the mixture contains 75% of copper, 5% of zinc and 20% of magnesium. What is the percentage of magnesium in the second alloy?
The admission ticket for an Art Gallery bears a password which is changed after every clock hour based on set of words Chosen for each day. The following is an illustration of the code and steps of rearrangement for subsequent clock hours. The Time is 9 a.m. to 3 p.m. Day’s first password: First Batch – 9 a.m. to 10 a.m. is not ready cloth simple harmony burning Second Batch – 10 a.m. to 11 a.m. ready not is cloth burning harmony simple Third Batch – 11 a.m. to 12 noon cloth is not ready simple harmony burning Fourth Batch – 12 noon to 1 p.m. not is cloth ready burning harmony simple Fifth Batch – 1 p.m. to 2 p.m. ready cloth is not simple harmony burning and so on. If the password for 11 a.m. to 12 noon was –“soap shy miss pen yet the she”, what was the password for the First Batch?
The admission ticket for an exhibition bears a password which is changed after every clock hour based on set of words chosen for each day. The following is an illustration of the code and steps of rearrangement for subsequent clock hours. The time is 9 a.m. to 3 p.m. Day's first password : First Batch ----- 9 a.m. to 10 a.m. is not ready cloth simple harmony burning Second Batch ----- 10 a.m. to 11 a.m. ready not is cloth burning harmony simple Third Batch ----- 11 a.m. to 12 noon cloth is not ready simple harmony burning Fourth Batch ----- 12 noon to 1 p.m. not is cloth ready burning harmony simple Fifth Batch ----- 1 p.m. to 2 p.m. ready cloth is not simple harmony burning and so on. If the password for 11 a.m. to 12 noon was --- "soap shy miss pen yet the she", what was the password for the first batch ?
In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the following suggested courses of actions logically follow(s) for pursuing. Statement: High-sulphur fuel oil (HSFO), essentially the leftovers of an oil refiner's output, will still flow from refineries around the world even after new rules start up in 2020 curtailing its use in the global shipping fleet.Sixty percent of the 33 refineries in a global survey will still produce HSFO in 2020 although the supply will tighten as 70 percent of these refiners plan to reduce their output.  Courses of action: I. Starting that year, ships will use marine fuel, which primarily consists of residual fuel oil, with a maximum sulphur content of 0.5 percent under International Maritime Organization (IMO) rules to reduce air pollution.  II. Currently, the global shipping fleet, which includes oil and chemical tankers as well as container ships, uses as much as 3.3 million barrels per day of HSFO with a maximum of 3.5 percent sulphur.  III. Refiners will have little incentive to produce HSFO after the regulations though some demand will remain as a small but growing number of vessels are fitted with smokestack scrubbers that remove the sulphur from the exhaust fumes and power plants will continue to consume the fuel. 
Consider the following oxides.  A. Magnesium oxide B. Sulphur dioxide C. Carbon dioxide D. Iron oxide E. Copper oxides Which among the following is the correct set which will convert litmus paper solution into blue?
There are two boxes. Box I contains one white card and two black cards and Box II contains one white card and a black card. Two persons P and Q play a game. P picks a card randomly from Box I. If P finds the white card, P wins and the game stops. If P finds the black card, Q draws a card randomly from Box II. If Q finds the white card Q wins. The game stops whether Q draws the white card or P draws the white card. Which one of the following is correct?
In this question, relationship between different elements is shown in the statement. This statement is followed by two conclusions: Statements: S ≤ L < U > M > B > E ≥ R Conclusion: i) S > M ii) L > E Choose the appropriate one from the following options A)Only conclusion i follows. B) Only conclusion ii follows. C) Either conclusion i or ii follows. D) Neither conclusion i nor ii follows. E) Both conclusion i and ii follow
108 kg of mixture C was prepared by mixing equal quantities of mixtures A and B, made up of chalk powder and brick powder, such that the ratio of chalk and brick powder in mixture C is 17 ∶ 10. If mixture A comprised of 22 kg chalk powder, how much brick powder was present in mixture B?
A Statement followed by Conclusion-I and Conclusion-II is given below. You have to take the Statement to be true even if it seems to be at variance from the commonly known facts. Read all conclusions and then decide which of the given Conclusion(s) logically follows/follows from the statement, disregarding the commonly known facts. Statement: Some radios are mobiles. All mobiles are computers. Some computers are watches. Conclusion I: Certainly some radios are watches. Conclusion II: Certainly some mobiles are watches. Which one of the following is correct?