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Tutor profile: Peram R.

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Peram R.
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Questions

Subject: Physical Chemistry

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Question:

What is the osmosis?

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Peram R.
Answer:

Passage of solvent molecules from a dilute solution region to the concentrated solution through a semipermeable membrane is known as Osmosis

Subject: Inorganic Chemistry

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Question:

What is the IUPAC name of[Ni(CO)4] molecule?

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Peram R.
Answer:

According to IUPAC names of coordination compounds, first write the ligand later metal name followed by oxidation number in brackets. In given compound, ligand neutral i.e., carbonyl and four ligands are present which gives prefix tetra Name: Tetracarbonylnickel(0)

Subject: Chemistry

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Question:

What is the oxidation of 'Cr' in Chromium pentaoxide (CrO5)?

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Peram R.
Answer:

According to oxidation rules, In CrO5, 'Cr' exist in +10 oxidation state as oxygen have (-2) oxidation state in oxides. But Cr does not exist in +10 oxidation state as it having only 6 unpaired electrons. In CrO5, 2 peroxy linkages are present which gives (+4) to Cr and One oxygen forms double bond with Cr gives (+2). Oxidation state of 'Cr' is +6

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