Chemistry Quiz - General Knowledge Questions and Answers

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

CH4
CH3OH.
CH3Cl.
CH3Br.


Correct Answer :CH3OH.

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What is the formula of Glucose?

C6H22O11
C6H10O5
C6H12O6
None of these

Correct Answer :C6H12O6

What is the bond order CO group?

A)

1


B)

2.5


C)

3.5


D)

3



Correct Answer :

3


Explanation :

In CO, there is a triple bond between C and O.

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

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.

Which of the following fibers are made of polyamides?/निम्नलिखित फ़ाइबर में से कौन से पॉली एमाईड से बना होता है?

Decron/डेकेरान
Orlon/ ओर्लन
Nylon/ नाइलॉन
Rayon/ रेयॉन


Correct Answer :Nylon/नाइलॉन

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