JEE MainChemistryD and F Block ElementsMCQ+4 / −1
The reaction of zinc with excess of aqueous alkali, evolves hydrogen gas and gives :
- A
- B
- C
- D
More from D and F Block Elements
- In following pairs, the one in which both transition metal ions are colourless is :2022 · MCQ
- In neutral or faintly alkaline medium, being a powerful oxidant can oxidize, thiosulphate almost quantitatively, to sulphate. In this reaction overall change in oxidation state of manganese will be :2022 · MCQ
- Which of the following -metal ion will give the lowest enthalpy of hydration when dissolved in water ?2022 · MCQ
- The number of terminal oxygen atoms present in the product B obtained from the following reaction is . + + A + + A + B + + 2022 · Numerical
- An acidified manganate solution undergoes disproportionation reaction. The spin-only magnetic moment value of the product having manganese in higher oxidation state is B.M. (Nearest integer)2022 · Numerical
- The electronic configuration of Pt (atomic number 78) is :2022 · MCQ
- Spin only magnetic moment of is B.M. (round off to the closest integer)2022 · Numerical
- For the reaction given below : . x + (aq) If two equivalents of precipitate out, then the value of x will be .2022 · Numerical