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
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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
Join With Us for More Updates
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
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