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प्रश्न
Assertion: Generally alkali and alkaline earth metals form superoxides.
Reason: There is a single bond between O and O in superoxides.
पर्याय
both assertion and reason are true and reason is the correct explanation of assertion
both assertion and reason are true but reason is not the correct explanation of assertion
assertion is true but reason is false
both assertion and reason are false
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उत्तर
both assertion and reason are false
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संबंधित प्रश्न
Discuss the general characteristics and gradation in properties of alkaline earth metals.
Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Why?
Alkaline earth metal (A), belongs to 3rd period reacts with oxygen and nitrogen to form compound (B) and (C) respectively. It undergoes metal displacement reaction with AgNO3 solution to form compound (D). Identify A, B, C and D.
Explain the important common features of Group 2 elements.
Why alkaline earth metals are harder than alkali metals?
The reducing power of a metal depends on various factors. Suggest the factor which makes Li, the strongest reducing agent in aqueous solution.
Name an element from Group 2 which forms an amphoteric oxide and a water soluble sulphate.
Alkaline earth metals show ______.
Given below are two statements:
Statement I: Colourless cupric metaborate is reduced to cuprous metaborate in a luminous flame.
Statement II: Cuprous metaborate is obtained by heating boric anhydride and copper sulphate in a non-luminous flame.
In the light of the above statements, choose the most appropriate answer from the options given below.
PbCl4 exists but PbBr4 and Pbl4 do not because of ______.
