Acids turn blue litmus into which color? (1) Green (2) Red (3) Pink (4) Colourless

1 Answer

Answer :

(2) Red Explanation: Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F).

Related questions

Description : Select from the following the statement which is true for bases. (a) Bases are bitter and turn blue litmus red. (b) Bases have a pH less than 7 (c) Bases are sour and change from red litmus to blue. (d) Bases turn pink when a drop of phenolphthalein is added to them.

Last Answer : Answer: (d) Bases turn pink when a drop of phenolphthalein is added to them.

Description : Which among the following is false about acids? (1) They give H+ ions in aqueous solution (2) Most acids contain hydrogen (3) They turn blue litmus red (4) They are bad conductor of electricity in aqueous solution

Last Answer : (4) They are bad conductor of electricity in aqueous solution Explanation: Acids are good conductors of electric current in aqueous solution. When acids come in contact with water, they liberate OH ions, resulting in conduction of electricity.

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Last Answer : She will go to Arby's on Monday, for that is the first day of the week and A is the first letter of the alphabet. So on Tuesday she would go to Burger King. On Wednesday she would go to Chick- ... because red is the first color of the rainbow. So on Tuesday she would have a Orange ball. And so on.

Description : What substance will turn blue litmus paper red?

Last Answer : Need answer

Description : Which gas turns litmus colourless?

Last Answer : Chlorine

Description : potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Last Answer : (1) From brown to blueblack Explanation: The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black colour.

Description : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Last Answer : From brown to blue-black

Description : One property of ammonia is – (1) It is insoluble in water (2) it is a odourless gas (3) It is a yellowish gas (4) Its aqueous solution turns red litmus blue

Last Answer : (4) Its aqueous solution turns red litmus blue Explanation: The main use of litmus is to test whether a solution is acidic or basic. For instance, ammonia gas, which is alkaline, colours the red litmus paper blue.

Description : If a solution turns blue litmus red, its pH is likely to be : (1) 7 (2) 8 (3) 9 (4) 6

Last Answer : (4) 6 Explanation: An acidic solution turns blue litmus red. On the pH scale, acids have values less than 7, whereas bases have values greater than 7. Solutions with pH equal to 7 are neutral in nature. Therefore the pH of the given solution is likely to be 6.

Description : A solution turns blue litmus red, its pH is likely to be - (1) 11 (2) 9 (3) 5 (4) 10

Last Answer : (3) 5 Explanation: If the litmus paper turns red, it indicates the presence of an acid while if it turns blue, it indicates the presence of a base.

Description : Which of the properties listed below would you expect a solution to have if it is an acid? w) It feels slippery to the touch. x) It tastes bitter. y) It turns red litmus blue. z) It is a conductor of electricity.

Last Answer : ANSWER: Z -- IT IS A CONDUCTOR OF ELECTRICITY.

Description : One property of ammonia is (1) It is insoluble in water (2) It is a odourless gas (3) It is a yellowish gas (4) Its aqueous solution turns red litmus blue

Last Answer :  Its aqueous solution turns red litmus blue

Description : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Last Answer : (1) From brown to blueblack Explanation: Any form of starch (carbohydrate) turns blue-black when iodine solution is applied to it. This is because starch is composed of polymers of ... already mentioned. The complex of iodine stuck inside the amylose coil produces a characteristic blueblack colour.

Description : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue–black (2) From brown to orange–red (3) From blue to pink (4) From pink to blue–green

Last Answer : From brown to blue–black

Description : Blue litmus paper is converted into red in solution of which thing? -Do You Know?

Last Answer : Acid Blue litmus turns red in acids and Red litmus turns blue in bases

Description : Blue litmus paper is converted into red in solution of which thing?

Last Answer : acid

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Last Answer : A)Black

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Last Answer : a) Green solution slowly turns brown

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Last Answer : Australian notes (money) $20 note is red $10 note is blue And a $5 note is pink!

Description : In phenolphthalein solution bases turns into (a) Pink (b) Yellow (c) Orange (d) Colourless

Last Answer : (a) Pink

Description : Which primary colors (blue, red, yellow) do i need to create pink color?

Last Answer : red and white will give you pink.

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Last Answer : Ans: (b). Blue color 

Description : What coloud does red litmus turn into in cold drink?

Last Answer : What is the answer ?

Description : An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change ? -SST 10th

Last Answer : D - The aqueous solution is a base as it turns red litmus solution blue. An acidic solution such as hydrochloric acid would reverse the change. In contrast, hydrochloric acid would turn blue ... not be able to reverse the change. These substances would only change red litmus solution to blue.

Description : (i) `KI+H_(2)O+O_(3)rarrA+B+O_(2)` (A turns moist starch paper blue, B turns red litmus blue) (ii) A(dry)`+O_(3)rarrX+O_(2)` What is true about X in t

Last Answer : (i) `KI+H_(2)O+O_(3)rarrA+B+O_(2)` (A turns moist starch paper blue, B turns red litmus blue) ... )` D. Average oxidation state of iodine in X is `+5`

Description : A solution which turns red litmus to blue is called?

Last Answer : Metalloids

Description : An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change? (a) Baking powder (b) Lime (c) Ammonium hydroxide solution (d) Hydrochloric acid

Last Answer : (d) Hydrochloric acid

Description : Generally metallic oxides are basic and non-metallic are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red? a)sulphur dioxide b)Magnesium oxide c)iron oxide d)copper oxide

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Description : What color litmus paper turn with soapy water?

Last Answer : Feel Free to Answer

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Last Answer : (C) Yellow

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Last Answer : Here are the answers. Cubes that have at least two sides painted in different colours are 24 + 8 = 32. Cubes that have only one side painted are 24. Cubes that have no side painted = 8. Cubes that have exactly one side not painted = 0.

Description : A cube of side 4cm is painted with 3 colors red, blue and green in such a way that opposite sides are painted in the same color. This cube is now cut into 64 cubes of equal size. 1. How many ... side painted. 3. How many cubes have no side painted. 4. How many have exactly one side not painted.

Last Answer : Here are the answers. 1. Cubes that have at least two sides painted in different colours are 24 + 8 = 32. 2. Cubes that have only one side painted are 24. 3. Cubes that have no side painted = 8. 4. Cubes that have exactly one side not painted = 0.

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Last Answer : Tetul converts blue litmus into red litmus.

Description : Which one makes litmus red ?

Last Answer : HCI turns litmus red.

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Last Answer : A greenhouse is made of glass or plastic, not bricks

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Description : Why the blue colour of CuSO4 turns colourless during electrolysis of CuSO4 solution by platinum electrode.

Last Answer : The platinum electrodes are inert. Hence does not dissolve into the solution. The Cu++ ions (blue) present in the solution are discharged on the surface of cathode & OH - are ... a result of this electrolysis, blue coloured CuSO4 solution is slowly converted into colorless H2SO4 solution.

Description : what berry bush has red berries that turn blue in groups of three and eye shaped oval green leaves?

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Last Answer : An eraser.

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Last Answer : Glass!

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Last Answer : (D) Blue Box

Description : Mark correct option a) Pink check slip for ordinary paid and unpaid bundle b) Blue check slip for Airmail c) White check slip for both express & differed bundle d) Marked 2 diagonal line green for local article, yellow for rajdhani & blue for metro bundle e) All the above

Last Answer : e) All the above

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