Chemistry Quiz - General Knowledge Questions and Answers

View in English View in Hindi

Who invented Aspirin?

A)

Ruth Handler


B)

John Harington


C)

Rowland Hill


D)

Felix Hoffmann



Correct Answer :

Felix Hoffmann


Explanation :

Felix Hoffmann, a German chemist,produced a stable form of acetylsalicylic acid, more commonly known as aspirin, in 1897. Aspiring is used to reduce fever and relieve mild to moderate pain from conditions such as muscle aches, toothaches, common cold, and headaches.

Post comment
Cancel
Thanks for your comment.!
Write a comment(Click here) ...
View in English View in Hindi

What is the formula of Glucose?

C6H22O11
C6H10O5
C6H12O6
None of these

Correct Answer :C6H12O6

What is the bond order CO group? / CO समूह का बंध क्रम संख्या क्या है?

1
2.5
3.5
3


Correct Answer :3

Rate constant depends on? / दर स्थिरांक निर्भर रहता है?

Temperature/ ताप
Time/ समय
Initial concentration/ प्रारंभिक सान्द्रता
None of these/ इनमें से कोई नही


Correct Answer :Temperature/ ताप

The formation of starch in plants results from? / पादपों में स्टार्च का बनना _______ परिणाम है?

Photosynthesis/प्रकाश संश्लेषण
Photolysis/प्रकाश विघटन
Flash photolysis/फ्लैश प्रकाश विघटन
None of the above/इनमें से कोई नहीं


Correct Answer :Photosynthesis/प्रकाश संश्लेषण

Ligands are:/ लिगेंड होते हैं:

Lewis acids/ लूईस अम्ल
Lewis bases/ लूईस क्षार
neutral. उदासीन
None of these/ इनमें से कोई नहीं


Correct Answer :Lewis bases/ लूईस क्षार

The chemical reactions in which reactants require high amount of activation energy are generally? / रासायनिक अभिक्रियाऐं जिनमें क्रियाकारकों को उच्च सक्रियण ऊर्जा की आवश्यकता होती है ये अभिक्रियाऐं सामान्यतः होती है?

Slow / धीमी
Fast / तीव्र
Instantaneous / तात्कालिक
Spontaneous / स्वतः


Correct Answer :Slow / धीमी

Which of the following is not a polymer?/ निम्न में से कौनसा बहुलक नहीं है?

Wool/ऊन
Cotton/कपास 
Nylon/ नाइलोन
Petrol/ पेट्रोल


Correct Answer :Petrol/पेट्रोल

Among the following a natural polymer is?

A)

Cellulose


B)

Poly Vinyl Chloride


C)

Teflon


D)

Polyethylene



Correct Answer :

Cellulose


Explanation :

Cellulose, another natural polymer, is the main structural component of plants.
Most natural polymers are condensation polymers, and in their formation from monomers water is a by-product.

How many symmetry elements (planes, axis and center) are there in a crystal?/ कितने सममिति तत्व (समतल, अक्ष और क्रेन्द) क्रिस्टल ठोस में होते हैं?

3
5
7
9


Correct Answer :3

The entropy of a system in an irreversible process is? / एक अनुत्क्रमणीय प्रक्रिया में तंत्र की एनट्राँपी?

Increased/ बढ़ता है
Decreased/ घटता है
Unchanged/ अपरिवर्तित रहता है
None of these/ उपरोक्त में से कोई नहीं


Correct Answer :Increased/बढ़ता है

The value of electrode potential depends upon?/इलैक्ट्रोड विभव का मान किस पर निर्भर करता है?

Nature of metal/ धातु की प्रकृति
Temperature/ तापमान
Concentration of ion/ आयन की सांद्रता पर
All the above/ उपरोक्त सभी


Correct Answer :All the above/ उपरोक्त सभी

In photochemical reactions the energy absorb by one mole of the substance is called? / प्रकाश रासायनिक प्रक्रियाओं में, पदार्थ  के एक मोल द्वारा अवशोषित ऊर्जा को कहा जाता है?

One quantum/ एक क्वांटम
One Calorie/ एक कैलोरी
Actinometer An Einstein/ एक आइन्स्टाइन
One joule/ एक जूल


Correct Answer :Actinometer An Einstein/ एक आइन्स्टाइन

Which has highest value of boiling point?/ किसका क्वथनांक बिंदु उच्चतम है?

CH4
CH3OH.
CH3Cl.
CH3Br.


Correct Answer :CH3OH.

Silver chloride when dissolved in ammounium hydroxide forms?/ एमोनियम हाइड्रॉक्साइड में सिल्वर क्लोराइड घोले जाने पर बनाता है:

Ag(OH).
Ag(OH)2.
Ag(NH3)4Cl.
Ag(NH3)2Cl.
Correct Answer :Ag(NH3)2Cl.

Which of the following is not an amino acid?/ इनमें से कौन एक एमिनो एसिड नहीं है?

Glycine/ ग्लिसरिन
Alanine/ एलानाईन
Thymine/ थाइमीन
Gunadine/गुनाईडिन


Correct Answer :Gunadine/गुनाईडिन

Example of condensation polymer is?

A)

Polyethene


B)

PVC


C)

Orlon


D)

Terylene



Correct Answer :

Terylene


Explanation :

Condensation polymers are any kind of polymers formed through a condensation reaction—where molecules join together—losing small molecules as byproducts such as water or methanol.

Terylene is a condensation polymer. The class of polyesters are formed by esterification reaction of a di-carboxylic acid with a diol. This reaction is called a condensation reaction because 2 molecules of water (H2O) are eliminated for every molecule of terephthalic acid that reacts with the diol.

Latest Updates

Agriculture

Which gas is fixed by Rhizobium bacteria present in the root nodules of a pea plant ?

Chemistry

The formation of sulphurous acid involves ?

The acid present in soft drinks is ?

The cathode of a dry cell is made of ?

The number of atoms present in the molecule of an element is known as its?

Physics

If the angle of incidence formed by a ray of light on a plane mirror is 37°, then the angle of refraction is?

A dynamo converts ?

If the time taken for hearing the echo of a girl's voice after reflection from a cliff is 6 seconds, calculate the distance of the girl from cliff ?

The physical quantity corresponding to the rate of change of displacement is..............?

Work done is said to be zero when an object moves at an angle of ............with respect to the force applied ?

Indian Geography

In terms of area, India is the ........largest country in the world ?

Indian Politics

How many members from the Anglo Indian community are nominated to the Lok Sabha?

Which of the following parts of the Constitution of India provides fundamental rights ?

Time and Work

Ram could complete a job alone in 6 days but Sunil would take thrice the time to do it alone.They started the work together but Ram had to leave a few days before the completion of the work and Sunil had to complete the remaining task by himself. If as a result , it took 6.75 days in all to complete the job, for how many days did the duo work together?

Profit and Loss

The cost price of 20 articles is equal to the selling price of 16 articles. Find the gain or loss percent?

Discount

Successive discount of 10% and 10% are equivalent to a single discount of ?

A discount series of 10%, 20% and 40% is equal to single discount of ?

Pepsi and Coke, there are two companies, selling the packs of cold­drinks. For the same selling price Pepsi gives two successive discounts of 10% and 25% on marked price, while Coke sells it by giving two successive discounts of 15% and 20% on marked price. What is the ratio of their marked price?