Acid strenght of the conjugate acids of the following are-

(1) I > II > III > IV

(2) III > II > I > IV

(3) IV > III > II > I

(4) None of these

निम्नलिखित के संयुग्मी अम्लों की अम्ल समार्थ्य हैं-

(1) I > II > III > IV

(2) III > II > I > IV

(3) IV > III > II > I

(4) इनमें से कोई नहीं

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Consider the acidity of the following carboxylic acids

(i) PhCOOH

(ii) o-NO2C6H4COOH

(iii) p-NO2C6H4COOH

(iv)m-NO2C6H4COOH

1. i>ii>iii>iv

2. ii>iv>iii>i

3. ii>iv>i>iii

4. ii>iii>iv>i

निम्नलिखित कार्बोक्सिलिक अम्ल की अम्लता पर विचार कीजिए 

(i) PhCOOH

(ii) o-NO2C6H4COOH

(Iii) p-NO2C6H4COOH

(iv) m-NO2C6H4COOH

1. i>ii>iii>iv

2. ii>iv>iii>i

3. ii>iv>i>iii

4. ii>iii>iv>i

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The optically active alkane with lowest molar mass is:

1. CH3CH2CCH

2. CH3CH2-CH|CH3-CH3

3. 

4. CH3CH2.CH2CH3

न्यूनतम मोलर द्रव्यमान के साथ प्रकाशिक रूप से सक्रिय क्षार है:

1. CH3CH2CCH

2. CH3CH2-CH|CH3-CH3

3. 

4. CH3CH2.CH2CH3

 54%

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 Soda extract is prepared by:

1. fusing soda and mixture and, then extracted with water

2. dissolving NaHCO3 and mixture in dil. HCl

3. boiling Na2CO3 and mixture in dil.HCl

4. boiling Na2CO3 and mixture in distilled water

सोडा निष्कर्ष तैयार किया जाता है:

1. सोडा और मिश्रण को संगलित करने पर और, फिर जल के साथ निष्कर्षण द्वारा 

2. NaHCOऔर मिश्रण को तनु HCl में घोलने पर

3. Na2COऔर मिश्रण को तनु HCl में उबालने पर 

4. Na2COऔर मिश्रण को आसुत जल में उबालने पर 

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How many geometrical isomers are possible of the following?

 CH3-CH=CH-CH=CH-CH3

1. 2             2. 3

3. 4             4. 6

निम्नलिखित में कितने ज्यामितीय समावयवी संभव हैं?

CH3-CH=CH-CH=CH-CH3

1. 2             2. 3

3. 4             4. 6

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If optical rotation produced by the compound (i) is+52° then that produced by the compound (ii) is:

1. -52°

2. +52°

3. 0°

4. unpredictable

यदि यौगिक (i) द्वारा निर्मित ध्रुवण घूर्णन +52° है, तो यौगिक (ii) द्वारा निर्मित ध्रुवण घूर्णन है:

1. -52°

2. +52°

3. 0°

4. अप्रत्याशित

 53%

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Which among the following is most basic?

1. 

2. 

3. 

4. 

निम्नलिखित में से कौन सा प्रबल क्षारीय है?

1. 

2. 

3. 

4. 

 50%

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The configuration of given tartaric acid is

1. 2R, 3R         2. 2R, 3S

3. 2S, 3S         4. 2S, 3R

दिए गए टार्टरिक अम्ल का विन्यास है:

1. 2R, 3R         2. 2R, 3S

3. 2S, 3S         4. 2S, 3R

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The IUPAC name of the compound

is....

1. 3-keto-2-methylhex-4-enal

2. 5-formylhex-2-en-3-one

3. 5-methyl-4-oxohex-2-en-5-al

4. 3-keto-2-methylhex-5-enal

यौगिक  का IUPAC नाम है:

 

1. 3-कीटो-2-मेथिल-4-ईनेल 

2. 5-फॉर्मिलहेक्स-2-ईन-3-ओन

3. 5-मेथिल-4-ऑक्सोहेक्स-2-ईन-5-अल

4. 3-कीटो-2-मेथिलहेक्स-5-ईनेल  

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The most stable carbocation is:

   1. C6H5CC6H5
                |
               C6H5

   2.C6H5C C6H5
            |
           CH5

    3. C6H5CC6H5
             |
           CH5

      4.         CH3
          |
CH3C
           |
         CH3

 

अधिक स्थायी कार्बधनायन है:

1. 

2. 

3. 

4. 

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