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It is because of the conjugate dienes. i.e. Double bond C single bond C double bonds. C=C-C=C etc. These conjugated dienes absorb light in the visible spectrum and in this case it happens to be pale yellow.
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Why you used 10 percent NaOH in synthesis of dibenzalacetone?
NaOH is required promote Aldol and dehydration at the end of the reaction. Moreover, the percentage of NaOH is less as greater %age would promote Cannizaro reaction.
Why you used 10 percent of sodium hydroxide in synthesis of dibenzalacetone?
NaOH is required promote Aldol and dehydration at the end of the reaction. Moreover, the percentage of NaOH is less as greater %age would promote Cannizaro reaction.
What is the coloured liquid used in thermometers?
Some times red coloured liquid is used but mostly gray coloured liquid is used.
What is violet coloured alcohol?
Meths
Manganese coloured compounds?
yes it is
What is the role of dibenzalacetone in sunscreens?
Due to the conjugation of dibenzalacetone, the molecule is able to absorb UV rays. It is commonly found in sunscreen because, when applied, the dibenzalacetone is able to absorb the harmful UV rays from the sun before they can reach/harm the skin.
How would you modifyAldol Synthesis of Dibenzalacetone to make benzalacetone instead?
use one equivalent of benzaldehyde instead of two
What are the Applications of dibenzalacetone?
I think it is one of the components of sunscreen I think it is one of the components of sunscreen
How can softwoods be coloured?
Softwoods can be coloured by staining.
Why do things look coloured?
why the things look to be coloured
Woman with light-coloured hair?
light coloured
When was Coloured Rain created?
Coloured Rain was created in 1967.
When was Coloured Kisses created?
Coloured Kisses was created in 1992.
Is Desmond tutu a Xhosa or coloured?
I'm saying coloured.
A kaka is a brightly coloured?
A kaka is a brighlty coloured parrot.
Why you used 10 percent NaOH in synthesis of dibenzalacetone?
NaOH is required promote Aldol and dehydration at the end of the reaction. Moreover, the percentage of NaOH is less as greater %age would promote Cannizaro reaction.
Why are some flowers not coloured?
They are not coloured because they undergo wind pollination unlike coloured flowers which have bright petals to attract insects for pollination.
