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Chemistry

Chemistry
Which one of the following elements is used in the manufacture of safety matches?

Graphite
Sodium
Phosphorus
Silicon

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Chemistry
Which of the following substance's smell is similar to Ethanoic acid?

Kerosene
Lemon
Vinegar
Tomato juice

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Chemistry
Which one of the following is not a characteristic feature of alloys? They are

Solutions
Compounds
Homogeneous systems
Mixtures

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Chemistry
Which of the following is used to increase the anti-knocking property of petrol ?

Tetramethyl lead
Trimethyl lead
Tetraethyl lead
Triethyl lead

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Chemistry
Which one of the following vegetable oils is used in the manufacture of paints?

Linseed oil
Palm oil
Sunflower oil
Cottonseed oil

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Chemistry
Adding Cl2 to benzene in the presence of AlCl3 is an example of :

Addition reaction
Elimination reaction
None of the options
Substitution reaction

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