Chemistry-
General
Easy
Question
Teflon is an example of:
- Fibres
- Elastomer
- Thermoplastic
- Thermosetting polymer
The correct answer is: Thermosetting polymer
Related Questions to study
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Two Ruff degradation of an aldohexose gives an
Two Ruff degradation of an aldohexose gives an
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Glucose reacts with acetic anhydride to form:
Glucose reacts with acetic anhydride to form:
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Which of the following compound is optically active?
Which of the following compound is optically active?
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Sulfonation of benzene differs from most other electrophilic substitution reactions in that the reaction.
Sulfonation of benzene differs from most other electrophilic substitution reactions in that the reaction.
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The appropriate reagent for the following transformation.
The appropriate reagent for the following transformation.
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Hydrogenation of the above compound in the presence of poisoned palladium catalyst gives
Hydrogenation of the above compound in the presence of poisoned palladium catalyst gives
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The products obtained via oximercuration (HgSO4 + H2SO4) of 1-butyne would be
The products obtained via oximercuration (HgSO4 + H2SO4) of 1-butyne would be
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Terepthalic acid is obtained by oxidation of which of following compounds ?
Terepthalic acid is obtained by oxidation of which of following compounds ?
Chemistry-General
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pH, of a buffer solution decrease by 0.02 units when 0.12 g of acetic acid is added to 250 mL of a buffer solution of acetic acid and potassium acetate at 
The buffer capacity of the solution is:
pH, of a buffer solution decrease by 0.02 units when 0.12 g of acetic acid is added to 250 mL of a buffer solution of acetic acid and potassium acetate at The buffer capacity of the solution is:
Chemistry-General
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If the Kb value in the hydrolysis reaction 
is 1.0 x 10-6, then the hydrolysis constant of the salt would be:
If the Kb value in the hydrolysis reaction is 1.0 x 10-6, then the hydrolysis constant of the salt would be:
Chemistry-General
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The solubility of mercurous chloride in water will be given as:
The solubility of mercurous chloride in water will be given as:
Chemistry-General
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Electrophiles are :
Electrophiles are :
Chemistry-General
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Hydrogenation of alkenes and alkynes takes place in presence of certain catalysts. In Sabatier Senderen’s reaction, the addition of hydrogen takes place in presence of Raney nickel catalyst. Platinum and palladium can also be used catalyst in these reactions. These are heterogeneous catalyst and used in finely divided state. Experimentally, it is observed that less crowded alkenes absorb H2 with faster rate. Controlled hydrogenation of alkyne in presence of Lindlar’s catalyst yields cis product i.e., ‘cis’ alkene. Thus, in presence of Lindlar’s catalyst ‘syn’ addition takes place. The relative rate of hydrogenation follows the order
Non-terminal alkynes are reduced in presence of Na or Li metal dissolved in liquid ammonia. In this reaction, anti-addition of hydrogen results into the trans-product.
The product of the following reaction is :
Hydrogenation of alkenes and alkynes takes place in presence of certain catalysts. In Sabatier Senderen’s reaction, the addition of hydrogen takes place in presence of Raney nickel catalyst. Platinum and palladium can also be used catalyst in these reactions. These are heterogeneous catalyst and used in finely divided state. Experimentally, it is observed that less crowded alkenes absorb H2 with faster rate. Controlled hydrogenation of alkyne in presence of Lindlar’s catalyst yields cis product i.e., ‘cis’ alkene. Thus, in presence of Lindlar’s catalyst ‘syn’ addition takes place. The relative rate of hydrogenation follows the order
Non-terminal alkynes are reduced in presence of Na or Li metal dissolved in liquid ammonia. In this reaction, anti-addition of hydrogen results into the trans-product.
The product of the following reaction is :
Chemistry-General
Chemistry-
Hydrogenation of alkenes and alkynes takes place in presence of certain catalysts. In Sabatier Senderen’s reaction, the addition of hydrogen takes place in presence of Raney nickel catalyst. Platinum and palladium can also be used catalyst in these reactions. These are heterogeneous catalyst and used in finely divided state. Experimentally, it is observed that less crowded alkenes absorb H2 with faster rate. Controlled hydrogenation of alkyne in presence of Lindlar’s catalyst yields cis product i.e., ‘cis’ alkene. Thus, in presence of Lindlar’s catalyst ‘syn’ addition takes place. The relative rate of hydrogenation follows the order
Non-terminal alkynes are reduced in presence of Na or Li metal dissolved in liquid ammonia. In this reaction, anti-addition of hydrogen results into the trans-product.
In which of the following cases, the reaction is most exothermic?
Hydrogenation of alkenes and alkynes takes place in presence of certain catalysts. In Sabatier Senderen’s reaction, the addition of hydrogen takes place in presence of Raney nickel catalyst. Platinum and palladium can also be used catalyst in these reactions. These are heterogeneous catalyst and used in finely divided state. Experimentally, it is observed that less crowded alkenes absorb H2 with faster rate. Controlled hydrogenation of alkyne in presence of Lindlar’s catalyst yields cis product i.e., ‘cis’ alkene. Thus, in presence of Lindlar’s catalyst ‘syn’ addition takes place. The relative rate of hydrogenation follows the order
Non-terminal alkynes are reduced in presence of Na or Li metal dissolved in liquid ammonia. In this reaction, anti-addition of hydrogen results into the trans-product.
In which of the following cases, the reaction is most exothermic?
Chemistry-General
Chemistry-
Chlorination of methane involves three steps: chain-initiating, chain-propagating and chain-terminating.
When oxygen is passed through the reaction mixture, chlorination of methane slows down temporarily
Although chlorination of methane is an exothermic, the reaction requires high temperature because
Chlorination of methane involves three steps: chain-initiating, chain-propagating and chain-terminating.
When oxygen is passed through the reaction mixture, chlorination of methane slows down temporarily
Although chlorination of methane is an exothermic, the reaction requires high temperature because
Chemistry-General
