Q1:In the reaction 2k + 2H2O --> 2 KOH + H2, which of the following is a specato
ID: 855787 • Letter: Q
Question
Q1:In the reaction 2k + 2H2O --> 2 KOH + H2, which of the following is a specator ion in the reaction?
- K+
- OH-
- H+
- all are
- none is
Q2: In the reaction Ni(OH)2 + 2HNO3 --> Ni(NO3)+2H2O, nickel hydroxide is classified as
- a reducing agent
- an oxidixing agent
- an acid
- a base
-both a base and an oxidizing agent
Q3: how many milliliters of 10.0 m HCL are required to react with 25 mL of 0.10 M NaOH?
- 25 mL
- 50 mL
- 12.5 mL
- 36.5 mL
- 40 mL
Q4:how many ml of 10.0 m koh are required to react with 2.0 mmol H2SO4 ?
- 20 mL
- 10 mL
-200 mL
-40 mL
-1.0 mL
Q5:In the reaction 2k + 2h2o --> 2koh + h2, potassium is
- oxidized
- reduced
-neutralized
- precipitated
- none of the above
Q6: when kcl reacts with pb(no3)2, the resulting precipitate will be
- KNO3
-PbCl
-PbCl2
- K(NO3)2
-There will be no precipitate
Explanation / Answer
1. k+
2. -both a base and an oxidizing agent
3. 25
4. 40
5. oxidised
6. pbcl2
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