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OSWAAL PUBLICATION-Sample Paper 6-Exercise
- State the modern periodic law.
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- What is the oxidation number of Cr in K2 CrO4
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- Why do alkali metals not occur in free state?
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- What is the formula of borax ?
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- What is Catenation?
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- During the estimnation of nitrogen by Kjeldhal's method, coper sulphat...
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- Write the structure of dimethyl acetylene.
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- Explain law of constant composition with suitable example.
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- How many molecules of an ideal gas are there is 1xx10^(-3)dm^(3) at S...
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- Mention the characteristic of covalent molecule.
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- Which out of LI, Na, K, Be, Mg, Ca has lowest ionization enthalpy and ...
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- Orthoboric acid acts as a Lewis acid . Why ?
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- Write the structure of cis and trans isomer of But-2-ene.
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- Explain addition reaction of hydrogen in alkynes.
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- Name the components of photochemical smog.
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- To which block does the element with atomic number 50 belong?
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- Define the term ionic radius. Justify that the radius of anion is larg...
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- Write the Lewis dot structure of C CI4
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- Write the Lewis dot structure of :PH3.
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- Define electrovalency of an element
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