Concentrated sulphuric acid is always dilute by adding
Concentrated sulphuric acid is always dilute by adding Options (a) water to acid (b) alcohol to acid (c) acid to…
7 years ago
Chemistry
Which of the following statements is correct
Which of the following statements is correct Options (a) All halogens except fluorine form oxy acid (b) All halogens form…
7 years ago
Chlorine acts as bleaching agent only in the presence of
Chlorine acts as bleaching agent only in the presence of Options (a) sunlight (b) moisture (c) dry air (d) pure…
7 years ago
Which of the following is low boiling liquid
Which of the following is low boiling liquid Options (a) HF (b) HCl (c) HBr (d) HI Correct Answer: HFExplanation:No…
7 years ago
In which of the following compounds, nitrogen exhibits highest oxidation state
In which of the following compounds, nitrogen exhibits highest oxidation state Options (a) N₂H₄ (b) NH₃ (c) N₃H (d) NH₂OH…
7 years ago
Repeated use of which one of the following fertilizers would increase the
Repeated use of which one of the following fertilizers would increase the acidity of the soil Options (a) Ammonium sulphate…
7 years ago
Aluminium is obtained by
Aluminium is obtained by Options (a) reducing Al₂O₃ with coke (b) electrolysing Al₂O₃ dissolved in Na₃AlF₆ (c) reducing Al₂O₃ with…
7 years ago
Which of the following is an ore of aluminium
Which of the following is an ore of aluminium Options (a) Dolomite (b) Azurite (c) Bauxite (d) Malachite Correct Answer:…
7 years ago
In the extraction of aluminium from bauxite, cryolite is used to
In the extraction of aluminium from bauxite, cryolite is used to Options (a) decreases the boiling point of aluminium (b)…
7 years ago
Galena is an ore of
Galena is an ore of Options (a) Pb (b) Sn (c) Hg (d) Zn Correct Answer: PbExplanation:No explanation available. Be…
7 years ago