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Chemistry

Chemistry
An element of atomic no. 29 belongs to

D-block
P-block
F-block
S-block

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Chemistry
The unit of ionic product of water (Kw) is :

Mol-1 let-2
Mol2 let-1
Mol2 let-2
Mol-1 let-1

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Chemistry
Non-stick kitchenwares are coated with

Graphite
Teflon
PVC
Silicon

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Chemistry
The residue left after extracting juice from sugarbeet and sugarcane is called

Whey
Bagasse
Molasses
Biomass

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Chemistry
Percentage of lead in lead pencils is

40
31-66
80

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Chemistry
Spontaneous change is one in there is:

A lowering of free energy
A lowering of entropy
Increase in free energy
An increase in Internal energy

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