Which of the following is used as an ‘anti-knock’ in automobile engines?
Which of the following is used as an ‘anti-knock’ in automobile engines? A. Tetramethyl silane B. Lead tetra-ethyl…
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Which of the following compounds would give lilac flame coloration and a white precipitate with…
Which of the following compounds would give lilac flame coloration and a white precipitate with acidified barium chloride…
How will a metal X, which reacts explosively with air and with dilute acids be…
How will a metal X, which reacts explosively with air and with dilute acids be best extracted from…
The iron (III) oxide impurity in bauxite can be removed by?
The iron (III) oxide impurity in bauxite can be removed by? A. Fractional crystallization in acid solution B.…
Which of the following does NOT contain aluminium as component?
Which of the following does NOT contain aluminium as component? A. Over-head cables B. Duralumin C. Container for…
A white solid suspected to be lead trioxonitrate (V) zinc trioxocarbonate (IV) or calcium trioxocabonate…
A white solid suspected to be lead trioxonitrate (V) zinc trioxocarbonate (IV) or calcium trioxocabonate (IV) was heated…
Ammonia gas is normally dried with?
Ammonia gas is normally dried with? A. concentrated sulphuric acid B. quicklime C. anhydrous calcium chloride D. magnesium…
What are the values of x, y and z respectively in the equation: xCu +…
What are the values of x, y and z respectively in the equation: xCu + yHNO3 → xCu(NO3)2…
When chlorine is passed into water and subsequently exposed to sunlight, the gas evolved is?
When chlorine is passed into water and subsequently exposed to sunlight, the gas evolved is? A. HCl B.…
A substance Z reacts with NaOH to give salt and water only. When Z is…
A substance Z reacts with NaOH to give salt and water only. When Z is treated with dilute…