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Phenol on reaction with formaldehyde and dimethyl amine mainly gives

Phenol on reaction with formaldehyde and dimethyl amine mainly gives Correct Answer <img src="/images/option-image/engineering-chemistry/basics-of-organic-reaction-mechanism/1690359943-87-2.png" title="Basics of Organic Reaction Mechanism mcq question image" alt="Basics of Organic Reaction Mechanism mcq question image">

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Abeer has 14 novels. Abeer’s friend Sanjay takes 3 of them and gives 2 novels to Abeer. Abeer donates 7 novels but buys 4. Joy takes 4 novels from Abeer and gives him 5. Abeer takes one novel from Sanjay and gives it to Joy in exchange for 3 more. Abeer gives those 3 novels to Sanjay and he gives Abeer a novel and a magazine. Rahul takes the magazine which Sanjay gave to Abeer and gives Abeer a textbook. Abeer gives the textbook to Joy in exchange for a novel. Rahul takes the novel from Sanjay, gives it to Joy for a magazine and gives Abeer the magazine for a novel. How many textbooks does Abeer have?
N2O4 Catalyzed oxidation of Dimethyl sulfide in vapor phase to Dimethyl sulfoxide is an explosive reaction. Is the statement true/false?
For the reaction, A = X + Y, the respective concentrations are CA, CX and CY. The forward reaction rate constant is kf and the backward reaction rate constant is kb. Choose the correct statement from the following:
P. At equilibrium, kf CA > kB CxCy
Q. If the reaction is irreversible than, kb CXCY = 0
R. The backward reaction rate will essentially be first order, if the forward reaction rate is first order.
S. Activation energy for the first order forward reaction will be independent of temperature.
Which of the following statements is incorrect regarding preparation of alcohols? give primary alcohol and secondary alcohol respectively b) Ketones on reaction with Grignard’s reagent gives tertiary alcohol c) Aldehydes on reaction with Grignard’s reagent gives primary or secondary alcohol d) Alkyl halides on reaction alcoholic potash gives alcohol
Consider the following statements with respect to Formaldehyde : 1. Formaldehyde solution can be used to increase the shelf life of fresh food. 2  It occurs naturally in plants and animals. 3. It is considered carcinogenic and exposure for long can cause cancer. Which of the statements given above are correct?
Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is
Who among the following proposed that in plant cells, CO2 is first reduced to formaldehyde, followed by condensation of the formaldehyde molecules to form sugars?
A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of
For a reaction, the extent of reaction equation is Ni = Nio + ϒVi is Where: Ni = Moles of species I present in the system after the reaction occurs Nio = Moles of species I present in the system when the reaction starts Vi = Stoichiometric coefficient for species i in the specified chemical reaction equation ϒ = Extent of reaction
In the reaction,
Basics of Organic Reaction Mechanism mcq question image
if the concentration of both the reagents is doubled then the rate of the reaction will