A basic idea about water.

1. WATER
DONE BY SWAMINEE.ARUN.PANCHAL

2. INTRODUCTION
W.OSTWALD stated that almost all the chemical
processes which occurs in nature ,takes place – among
solution in water.
Water which is occurs natural instate is called natural
water.
Water which is treated is called treated water

3. OCCURRENCE OF WATER
SOLID STATE- SNOW,FROST,ICE
LIQUID STATE –LAKEWATER,RIVERWATER.
GASEOUS-VAPOUR,MIST,FOG,CLOUDS
EARTHS SURFACE -75%
HUMANBODY-70%

4. PHYSICAL PROPERTIES
COLOUR-TRANPARENT
ODOUR-ODOURLESS
TASTE-TASTELESS
BOILING POINT-100
FREEZING POINT-0
IT IS A UNIVERSAL SOLVENT
GOOD CONDUCTOR OF HEAT AND ELECTRICITY

5. CHEMICAL PROPERTIES
NATURE OF WATER
WATER IN NATURE STATE IS NEUTRALTO LITMUS STBLE
IN NATURE ,DOCOMPOSES SLIGHHTLY A IS
TEMPRETURE ABOVE 2000DEGREE.
SYNTHESIS OF –HYDROGENCHLORIDE IN PRESENCES OF
MOIST-H2+CL2=2HCL

6. REACTION OF K ,Na,Ca
POTASSIUM SODIUM CALCIUM
NATURE OF REACTION Reaction is highly
exothermic and
vigorous.
Reaction is comparatively
less exothermic
Reaction is much less
vigorous comparatively
smooth
COLOUR OF FLAME Lilac flame Golden yellow flame Don’t get to fire
EQUATION 2k+2H2O=2KOH+H2 2NA+2H2O=2NAOH+H2 CA+2H2O=CA(OH)2+H2

7. REACTION OF BOILING WATER AND
STEAM WITH METAL
Reaction with Mg
No reaction with cold with water boiling dazzling effect
Mg+H2O→MgO+H2
Al-DOES REACT WITH BOTH
2AL+3H2O+AL2O+3H2
Zinc become red hot
ZN+H2O=ZNO +H2