Practice Test

Q1) _____is well known for definitions of acids and bases Show Answer

Q2) The metallic elements are extracted from their ores by Show Answer

Q3) Oxidation is a process which involves Show Answer

Q4) Reduction is a process which involves Show Answer

Q5) An oxidizing agent is a substance which can Show Answer

Q6) Reducing agent is a substance which can Show Answer

Q7) Which of the following involves the redox reaction? Show Answer

Q8) The oxidation number of Mn is +7 in Show Answer

Q9) In which of the following reactions, hydrogen acts as an oxidising agent? Show Answer

Q10) The violent reaction between sodium and water is an example of Show Answer

Q11) Most common oxidation number of an element is -1. The number of electrons in its outermost shell is Show Answer

Q12) The conversion of PbS to Pb is Show Answer

Q13) The burning of methane in air by oxidation is example of Show Answer

Q14) Bleaching is Show Answer

Q15) Sulphide minerals are converted to oxides by Show Answer

Q16) Hydrogen can have oxidation number/s of Show Answer

Q17) In which one of the following compounds the oxidation number of oxygen is positive? Show Answer

Q18) Which of the following acts as an oxidizing agent? Show Answer

Q19) Which of the following acts both as an oxidising as well as reducing agent? Show Answer

Q20) The compound that can work both as an oxidising as well as a reducing agent is Show Answer

Q21) In which of the compounds does manganese exhibit highest oxidation number? Show Answer

Q22) In which of the following compounds, the oxidation number of iodine is fractional? Show Answer

Q23) In which of the following compounds, nitrogen has an oxidation state of -1? Show Answer

Q24) Among the following, identify the species with an atom in + 6 oxidation state Show Answer

Q25) In which compound chlorine has highest oxidation number? Show Answer

Q26) Nitrogen has oxidation number Show Answer

Q27) In which of the following compounds, transition metal is in zero oxidation state? Show Answer

Q28) Carbon is in the lowest oxidation state in which of the given compound? Show Answer

Q29) In which of the following compounds the oxidation number of carbon is zero? Show Answer

Q30) Which reaction involves neither oxidation nor reduction? Show Answer

Q31) A redox reaction is Show Answer

Q32) In which of the following reactions, the underlined substance has been oxidized? Show Answer

Q33) Which of the following represents a redox reaction? Show Answer

Q34) Which of the following is NOT a redox reaction? Show Answer

Q35) Which of the following is NOT a redox reaction? Show Answer

Q36) Nitric oxide acts as a reducing agent in the reaction Show Answer

Q37) The compound that can work both as an oxidizing as well as a reducing agent is Show Answer

Q38) Which of the following involves transfer of five electrons? Show Answer

Q39) Which of the following behaves as both oxidizing and reducing agent? Show Answer

Q40) which of the following is a redox reaction? Show Answer

Q41) Of the following reactions, only one is a redox reaction. Identify it Show Answer

Q42) The reaction in which hydrogen peroxide acts as a reducing agent is Show Answer

Q43) Which of the following is a redox reaction? Show Answer

Q44) In which one of the following reactions, nitrogen is NOT reduced? Show Answer

Q45) In which equation, there is no change in valency? Show Answer

Q46) Which of the following equation is a balanced equation? Show Answer

Q47) To remove stains from clothes ______ is used. Show Answer

Q48) Corroded iron is Show Answer

Q49) In which of the following oxidation number of chlorine is + 5. Show Answer

Q50) In which of the following compounds, iron has the lowest oxidation number? Show Answer

Q51) Which of the following acts as a reducing agent? Show Answer

Q52) In which of the following reactions, the underlined substance has been reduced? Show Answer

Q53) The oxide which cannot act as a reducing agent is Show Answer