Identify the correct statements from the following
I) Sodium hydrogen carbonate is used as mild antiseptic for skin infections
II) The solubility of sodium chloride increases appreciably with increase in temperature
III) Sodium hydroxide is used for mercirising cotton in textile industries
IV) Sodium carbonate on heating at above 375K decomposes to liberate CO₂

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

I, III only

All

I, II, III only

II, III only

answer is C.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

NaHCO₃ is used as antiseptic agent for skin infection
Solubility of NaCl doesnot change appreciably with increase in temperture
Hydration enthalpy of NaCl is -784.KJ/mole ?
L.E of NaCl is +788KJ/mole

ΔH_solutionof NaCl is +4KJ/mole, Since ΔH value is negligibly small no effect of temperature on its solubility
NaOH is used for mercirising cotton in textile industry
Na₂CO₃ is thermally stable and hence it donot undergo decomosition

statement - I and statement - II option are correct

Watch 3-min video & get full concept clarity