Question | Answer |
IODINE REACT WITH THE RED ALLOTROPE OF PHOSPHORUS TO FORM ... | PHOSPHORUS TRIIODIDE. 2P + 3I2 à 2PI3. |
IF MIXTURE OF PI3 IS DAMP THEN ... | CAN REACT WITH WATER TO FORM HYDROGEN IODIDE GAS. PI3 + 3H20 à 3HI+H3PO3 |
(THIS HOW GASEOUS HYDROGEN IODIDE IS PREPARED.) | |
HOW IS GASEOUS HYDROGEN IODIDE PREPARED .. | MIXTURE OF PI3 IS DAMP THEN ...CAN REACT WITH WATER TO FORM HYDROGEN IODIDE GAS. PI3 + 3H20 à 3HI+H3PO3 |
A HALOGEN WILL DISPLACE A | LESS REACTIVE HALOGEN. |
WHEN CL- BUBBLED IN KBR ... | CL- OXIDISES THE BROMIDE IONS. BROWN BROMINE IS FORMED. CL2 + 2BR-àBR2 + 2CL- . THE CL- MOLECULE GAIN 2 ELECTRONS FORM EACH BROMIDE ION : 2BR-(AQ) à BR2(AQ) + 2E-. CL2(G) + 2E- à 2CL-(AQ). |
CL DISPLACES ... | IODINE FROM IODIDES |
WHEN CHLORINE DISPLACE IDODINE WHAT DOES IT FORM .. | A DARK GREY PRECIPITATE OF IODINE CL2 + 2I- à I2 + 2CL-. |
BROMINE ALSO DISPLACES ... | IODINE FROM IODIDES BR2(AQ) + 2I-(AQ) à I2(S) +2BR-(AQ). |
THE DISPLACEMENT OF BR BY CL- IS USED IN ... | EXTRACTION OF BROMINE SEAWATER , HAS SMALL AMOUNT OF BR IONS. |
IODINE IS THE LEAST REACTIVE SOO... | WILL ALWAYS BE DISPLACED |
CL GAS IS BUBBLED INTO SEAWATER & BR PRODUCED IS ... | REMOVED BY BLOWING AIR THROUGH THE SOLUTION. |
(SEAWATER )ON COOLING THE BROMINE VAPOUR ... | CONDENSES IS COLLECTED. |
IODINE IS ONLY VIOLET WHEN .. | A GAS OR DISSOLVED IN HEXANE OR TETRACHLORIDE. |
HOW DOES CL REACT WITH WATER ... | REVERSIBLE TO FORM HCL ACIDIC AND WEAK ACID CHLORIC (I) ACID. |
WHAT DOES CL FORM WHEN REACTED IWTH WTAER ... | HCL ACIDIC AND WEAK ACID CHLORIC (I) ACID THE SOLUTION ACIDIC COZ THE H+. |
H+ IONS MAKE SOLUTIONS ... | ACIDIC |
REACTION OF CL WITH WATER IS WHAT TYPE OF REACTION... | WHY? THIS IS A DISPROPORTIONATION REACTION. CL2- STARTS IN 0 OXIDATION STATE & IS REDUCED TO -1 IN CL- ION AND OXIDISED TO +1 IN CHLORIC (I) ACID HOCL. CL- IS SIMULTANEOUSLY OXIDISED AND REDUCED. |
HOW DOES FLUORINE REACT WITH WTAER... | IRREVERSIBLY WITH WATER FORM HYDROGEN FLUORIDE AND OXYGEN. |
WHAT IS FORMED WHEN F-(G) + H20(L) ... | HF AND O2. |
HOW DOES BROMINE REACTS WITH WATER | (REVERSIBLEY WITH WATER ) BUT POSITION OF EQUILIBRIUM MORE ON LEFT. |
BR2(AQ) + H2O(L) REVERSIBLE ARROWS H+(AQ) + BR-(AQ) +HOBR (AQ) | |
HOW DOES IODINE REACT WITH WATER ... | IODINE DOESN’T REACT WITH WATER. |
ALKALI AT ROOM TEMP CL- BR-I-ALL REACT WITH COLD AQUEOUS NAOH ... | BY DISPROPORTIONATION REACTIONS FORM MIXTURE OF HALIDE AND HALATE (I) SALTS |
DISPROPORTION REACTION WITH CL AND COLD AQUEOUS NAOH ... | CL2(0) + 2NAOH àNACL(-1) + NAOCL(+1) +H2O. THE CL IN ZERO STATE REDUCED TO -1 IN NACL AND OXIDISED TO +1 IN NAOCL (SODIUM CHLORATE (I)). IONIC EQUATION IS: CL2(AQ) + 2OH- (AQ) à CL-(AQ) +OCL (AQ) +H20(L). |
F- REACTS IRREVERSIBLE WITH WATER TO FORM | HYDROGEN FLUORIDE AND OXYGEN. CL IS TOTALLY IONISED INTO H+ AND CL- IONS. |
WHEN BOLIING ARE HF BOND BROKEN ...WHY ? | NO HF HAS INTERMOLECULAR BONDS, COVALENT BONDS |