A solution turns red litmus blue, its pH is likely to be
(a) 1
(b) 4
(c) 5
(d) 10
1 Answers
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1. the number of ways in the squares of 8x8 chess board can be painted red or blue so that each 2x2 square has two red and two blue squares is
Solution: For an m×n chessboard there are 2m+2n−2 ways. Case I. There are two horizontally adjacent squares of the same color: 2m−2 ways. Case II. There are two vertically adjacent squares of the same color: 2n−2 ways. Case III. None of the...
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An oxide of an element was dissolved in water. The final solution turned red litmus blue. Is the element metal, non-metal or a metalloid?
The oxide of the element is basic as it turns red litmus blue .This means that the element is a metal (M).
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What change will you observe if you test soap with litmus paper (red and blue)?
Since soap is basic in nature, it will turn red litmus blue. However, the colour of blue litmus will remain blue.
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In monohybrid cross of red and white flower, Mendel got only red flower. On setting the F1 plants having red flower
On crossing red and white flower only red colour flower appeared in the F1 generation. But the white colour flower again appear in the F2 generation which is raised out...
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An aqueous solution turns red litmus solution blue.
Hyclrochloric acid because adding excess acid to the base would turn blue litmus solution red.
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What do we observe on pouring acetic acid on red and blue litmus papers?
(A) Red litmus remains red and blue litmus turns red.
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Select the correct observation about dilute solution of acetic acid. (A) It smells like rotten egg and turns blue litmus red.
(D) It smells like vinegar and turns blue litmus red.
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What change will you observe if you test soap with litmus paper (red and blue),
Soap is a salt of a strong base (NaOH or KOH) and a weak acid (carboxylic acid). So, its aqueous solution is basic in nature. Hence, an aqueous solution of...
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Select the correct statement about the properties of acetic acid. (a) It smells like vinegar and turns red litmus to blue.
(d) It smells like vinegar and turns blue litmus to red.
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In a box there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
(e) If the drawn ball is neither red nor green, then it must be blue, which can be picked in 7C1 = 7 ways. One ball can be picked from...
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