A motorboat whose speed is 18 km/hr in still water takes 1 hr more to go 24 km upstream than to return downstream to the same spot. Find the speed of stream. Speed of Motorboat in still water= 18km/hr Speed Read More …
Two pipes running together can fill a tank in 6 minutes. If one pipe takes 5 minutes more than the Other to fill the tank, find the time in which each pipe would fill the tank separately. solution : Let Read More …
What do you understand by (i) electron-deficient, (ii) electron-precise, and (iii) electronrich compounds of hydrogen? Provide justification with suitable examples.
Do you expect the carbon hydrides of the type (CnH2n + 2) to act as ‘Lewis’ acid or base? Justify your answer.
What characteristics do you expect from an electron-deficient hydride with respect to its structure and chemical reactions?
Discuss the consequences of high enthalpy of H–H bond in terms of chemical reactivity of dihydrogen.
Complete the following reactions: (i) H2(g) +Mm Oo(s)Δ→ (ii) CO(g)+H2(g) Δ→catalyst (iii) C3H8(g) +3H2O(g)Δ→catalyst (iv) Zn(s)+NaOH(aq)→ heat
Describe the bulk preparation of dihydrogen by electrolytic method. What is the role of an electrolyte in this process?
How can the production of dihydrogen, obtained from ‘coal gasification’, be increased?
Why does hydrogen occur in a diatomic form rather than in a monoatomic form under nomal conditions?
Write the names of isotopes of hydrogen. What is the mass ratio of these isotopes?