16. CHEMISTRY IN EVERYDAY LIFE
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CHEMISTRY IN EVERYDAY LIFE

38445 Which is the wrong statement with regards to Indigo

1 Indigo was extracted in India from plants of the 'Indigo ferra' group
2 The chemical structure of Indigo was determined by Baeyer, a German chemist who also synthesized it
3 Indigo is a dark blue solid soluble in water giving a blue solution
4 Indigo is fixed to fabrics by the vat process
CHEMISTRY IN EVERYDAY LIFE

38446 Which of the following structures represents a colourless substance

1 \({C_6}{H_5} - N = \mathop N\limits_{\mathop |\limits_O } - {C_6}{H_5}\)
2 \({C_6}{H_5} - N = N - {C_6}{H_5}\)
3 \({C_6}{H_5} - NH - NH - {C_6}{H_5}\)
4 None of these
CHEMISTRY IN EVERYDAY LIFE

38447 Identify the wrong statement regarding alizarin

1 Alizarin was extracted from the roots of the madder plant
2 It's chemical name is \(1, 2-\)dihydroxy anthraquinone
3 It is fixed to fabrics by using mordants like aluminium sulphate giving fast red colour
4 It has red crystal soluble in alkalies and the solution imparts red colour to fabrics
CHEMISTRY IN EVERYDAY LIFE

38448 Methyl orange is an indicator in acid-alkali titration. It gives

1 Yellow colour in alkaline medium
2 Red colour in acid medium
3 Yellow colour in acid medium
4 Yellow colour in alkaline medium and red colour in acid medium
NEET DIGITAL LIBRARY
CHEMISTRY IN EVERYDAY LIFE

38445 Which is the wrong statement with regards to Indigo

1 Indigo was extracted in India from plants of the 'Indigo ferra' group
2 The chemical structure of Indigo was determined by Baeyer, a German chemist who also synthesized it
3 Indigo is a dark blue solid soluble in water giving a blue solution
4 Indigo is fixed to fabrics by the vat process
CHEMISTRY IN EVERYDAY LIFE

38446 Which of the following structures represents a colourless substance

1 \({C_6}{H_5} - N = \mathop N\limits_{\mathop |\limits_O } - {C_6}{H_5}\)
2 \({C_6}{H_5} - N = N - {C_6}{H_5}\)
3 \({C_6}{H_5} - NH - NH - {C_6}{H_5}\)
4 None of these
CHEMISTRY IN EVERYDAY LIFE

38447 Identify the wrong statement regarding alizarin

1 Alizarin was extracted from the roots of the madder plant
2 It's chemical name is \(1, 2-\)dihydroxy anthraquinone
3 It is fixed to fabrics by using mordants like aluminium sulphate giving fast red colour
4 It has red crystal soluble in alkalies and the solution imparts red colour to fabrics
CHEMISTRY IN EVERYDAY LIFE

38448 Methyl orange is an indicator in acid-alkali titration. It gives

1 Yellow colour in alkaline medium
2 Red colour in acid medium
3 Yellow colour in acid medium
4 Yellow colour in alkaline medium and red colour in acid medium
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CHEMISTRY IN EVERYDAY LIFE

38445 Which is the wrong statement with regards to Indigo

1 Indigo was extracted in India from plants of the 'Indigo ferra' group
2 The chemical structure of Indigo was determined by Baeyer, a German chemist who also synthesized it
3 Indigo is a dark blue solid soluble in water giving a blue solution
4 Indigo is fixed to fabrics by the vat process
CHEMISTRY IN EVERYDAY LIFE

38446 Which of the following structures represents a colourless substance

1 \({C_6}{H_5} - N = \mathop N\limits_{\mathop |\limits_O } - {C_6}{H_5}\)
2 \({C_6}{H_5} - N = N - {C_6}{H_5}\)
3 \({C_6}{H_5} - NH - NH - {C_6}{H_5}\)
4 None of these
CHEMISTRY IN EVERYDAY LIFE

38447 Identify the wrong statement regarding alizarin

1 Alizarin was extracted from the roots of the madder plant
2 It's chemical name is \(1, 2-\)dihydroxy anthraquinone
3 It is fixed to fabrics by using mordants like aluminium sulphate giving fast red colour
4 It has red crystal soluble in alkalies and the solution imparts red colour to fabrics
CHEMISTRY IN EVERYDAY LIFE

38448 Methyl orange is an indicator in acid-alkali titration. It gives

1 Yellow colour in alkaline medium
2 Red colour in acid medium
3 Yellow colour in acid medium
4 Yellow colour in alkaline medium and red colour in acid medium
For More Updates join with Us
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CHEMISTRY IN EVERYDAY LIFE

38445 Which is the wrong statement with regards to Indigo

1 Indigo was extracted in India from plants of the 'Indigo ferra' group
2 The chemical structure of Indigo was determined by Baeyer, a German chemist who also synthesized it
3 Indigo is a dark blue solid soluble in water giving a blue solution
4 Indigo is fixed to fabrics by the vat process
CHEMISTRY IN EVERYDAY LIFE

38446 Which of the following structures represents a colourless substance

1 \({C_6}{H_5} - N = \mathop N\limits_{\mathop |\limits_O } - {C_6}{H_5}\)
2 \({C_6}{H_5} - N = N - {C_6}{H_5}\)
3 \({C_6}{H_5} - NH - NH - {C_6}{H_5}\)
4 None of these
CHEMISTRY IN EVERYDAY LIFE

38447 Identify the wrong statement regarding alizarin

1 Alizarin was extracted from the roots of the madder plant
2 It's chemical name is \(1, 2-\)dihydroxy anthraquinone
3 It is fixed to fabrics by using mordants like aluminium sulphate giving fast red colour
4 It has red crystal soluble in alkalies and the solution imparts red colour to fabrics
CHEMISTRY IN EVERYDAY LIFE

38448 Methyl orange is an indicator in acid-alkali titration. It gives

1 Yellow colour in alkaline medium
2 Red colour in acid medium
3 Yellow colour in acid medium
4 Yellow colour in alkaline medium and red colour in acid medium
NEET DIGITAL LIBRARY