Please select a subject first
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Benzaldehyde does NOT show positive test with ______.
Concept: undefined >> undefined
Answer in brief.
Observe the following equation of reaction of Tollens' reagent with aldehyde. How do we know that a redox reaction has taken place? Explain.
\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]
Concept: undefined >> undefined
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Answer in brief.
What is the action of hydrazine on cyclopentanone in presence of KOH in ethylene glycol?
Concept: undefined >> undefined
Write a note on Stephen reaction.
Concept: undefined >> undefined
Answer in one sentence.
Write the reaction of p-toluenesulphonyl chloride with diethylamine.
Concept: undefined >> undefined
Write reaction showing aldol condensation of cyclohexanone.
Concept: undefined >> undefined
Answer in brief.
Write reaction showing conversion of Acetaldehyde into acetaldehyde dimethyl acetal.
Concept: undefined >> undefined
Distinguish between ethylamine, diethylamine, and triethylamine by using Hinsberg’s reagent?
Concept: undefined >> undefined
Choose the most correct option.
The prefix 'nano' comes from ____________.
Concept: undefined >> undefined
Answer the following
Which nanomaterial is used for tyres of the car to increase the life of tyres?
Concept: undefined >> undefined
Answer the following
Name the scientist who discovered a scanning tunneling microscope (STM) in 1980.
Concept: undefined >> undefined
Answer the following
Give the full form (long form) of the name for following instrument.
XRD
Concept: undefined >> undefined
Answer the following
Give the full form (long form) of the name for the following instrument.
TEM
Concept: undefined >> undefined
Answer the following
Give the full form (long form) of the name for the following instrument.
STM
Concept: undefined >> undefined
Answer the following
Give the full form (long form) of the name for the following instrument.
FTIR
Concept: undefined >> undefined
Answer the following
Give the full form (long form) of the name for the following instrument.
SEM
Concept: undefined >> undefined
Answer the following in one sentence :
Classify the following buffers into different types :
NH4OH + NH4Cl
Concept: undefined >> undefined
Answer the following in one sentence :
Classify the following buffers into different types :
Sodium benzoate + benzoic acid
Concept: undefined >> undefined
Answer the following in one sentence :
Classify the following buffers into different types :
Cu(OH)2 + CuCl2
Concept: undefined >> undefined
Explain with diagram, the vacancy defect.
Concept: undefined >> undefined
