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Chemistry

Chemistry
Non-stick kitchenwares are coated with

Silicon
PVC
Graphite
Teflon

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Chemistry
Which of the following has least negative electron gain enthalpy

P
Cl
S
F

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Chemistry
Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ?

Hydrogen peroxide
Borax
Sodium chloride
Saltpetre

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Chemistry
Which of the following fibres catches fire least ?

Nylon
Rayon
Terricot
Cotton

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Chemistry
Bee sting contains

An alkaline liquid
An acidic liquid
A corrosive liquid
A salt solution

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Chemistry
The most important ore of lead is

Siderite
Pyrolusite
Galena
Magnetite

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