Meghna Singh − Profile

Contrivance

Its servants of people society

x=8

when ammonium hydroxide is addded to zinc  nitrate, a white gelatinous ppt is formed and this ppt dissolves in excess of NH4OH

The reagent will turn brown

Na₂S₂O₃ + HCl ---> 2NaCl + H₂O + SO₂+S

NH₃ + 3Cl₂ --->3HCl + NCl₃

S + 6HNO3 ---> H₂SO₄ + 6NO₂ + 2H₂O

Pb(NO₃)₂ + H₂SO₄ ---> Pb(SO₄) + 2HNO₃

Deepika's voice:-

wav(λ) = 2m

freq = 750Hz

v = wav*freq = 2*750 = 1500m/s

Aishwaria's voice :-

wav=5m

v=1500m/s

freq = v/wav = 1500/5 = 300Hz

Deepika's voice has higher pitch.

(i hope the answer is correct bcoz the velocity i got is weird)!