If acidified potassium dichromate (VI) acts as oxidizing agent, color changes from
a) orange to red
b) orange to green
c) yellow to green
d) yellow 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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State why heat changes in physical and chemical processes are indicated by enthalpy changes and not by entropy changes?
Most of the processes are carried out in an open system i.e, at constant pressure.
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The compound AgF2 is unstable. However, if formed, the compound acts as a very strong oxidizing agent. Why?
The +2 oxidation state of Ag is unstable in nature, so the compound (Ag2+ ) tend to gain an electron to possess the +1 oxidation state of silver.
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Name one example of reaction in which dihydrogen acts (i) as an oxidizing agent (ii) as a reducing agent.
(i) In the reaction of dihydrogen with metals to form metal hydride it acts as an oxidizing agent 2Na(s) +H2 (g) --------------> 2Na+H Here Na has oxidized to Na+ and Dihydrogen is...
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Which compound is used as oxidizing agent for lead sulphide to restore the color of lead paintings?
H2O2 ............
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Assertion (A): In the reaction between potassium permanganate and potassium iodide, permanganate ions act as oxidizing agent
(c)A is true but R is False
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In an acidified solution of potassium dichromate (VI), dichromate ion becomes reduced to a) chromate (V) ions b) chromium (III) ions
b) chromium (III) ions
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(a) Among ionic species Sc^+3, Ce^+4 and Eu^+2, which one is a good oxidizing agent
(a) Ce+4 (b) (i)Cr2O7−2 + 3Sn+2 +14H+ → 2Cr+3 +3Sn+4 + 7H2O (ii)MnO4- +5Fe+2 + 8H+ → Mn+2 + 5Fe+3 +4H2O
1 Answers 3 views
On heating, potassium chlorate decomposes to potassium chloride and oxygen. In one experiment 30g of potassium chlorate generates 14.9g
(a) 2KCIO3→2KCI + 3O2 30g 14.9g 9.6g Suppose mass of under composed KCIO3 = xg According to law of conservation of mass the total mass...
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If orange is called butter, butter is called soap, soap is called ink, ink is called honey and honey is called orange,
The correct answer is (D) Ink.
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