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What is Hypo? Preparation, Uses and Formula Explained

By Know.it editorial teamPublished Updated 5 min mein padhoHinglish

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Quick jawab

Hypo sodium thiosulphate (Na2S2O3) ka short naam hai. Yeh ek salt hai, acid nahi. Ise sodium sulphite solution mein sulphur ko boil karke, ya sodium thiosulphate solution mein chlorine pass karke banaya jata hai. Photography mein fixer, swimming pools mein chlorine neutralizer, aur labs mein iodine measure karne ke liye use hota hai.

Ek line meinHypo ek chemical compound hai jiska systematic naam sodium thiosulphate hai aur formula Na2S2O3 hai; yeh ek salt hai jo photography mein silver halides ko dissolve karke image ko fix karta hai.

Socho tumne kisi purane zamane ke camera se photo khinchhi. Film ko develop karne ke liye ek chemical chahiye hota hai jo image ko permanent bana de. Wahi chemical hai hypo!

Yeh naam chemistry class mein zaroor suna hoga, lekin hypo sirf photography tak seemit nahi hai. Swimming pool se lekar laboratory tak, yeh kahin bhi mil sakta hai. Chalo, isko step by step samjhte hain.

Hypo kya hai? Sodium thiosulphate ka short naam

Hypo ek short naam hai jiska full chemical naam sodium thiosulphate hai. Iska chemical formula Na2S2O3 hai. Yeh ek white crystalline solid hai jo paani mein aasani se ghul jata hai.

Dhyan rakho: hypo ek salt hai, acid nahi. Yeh sodium (Na+) aur thiosulphate (S2O3^2-) ions se bana hota hai. Isliye ise sodium ka salt kaha jata hai. Bahut log ise acid samajh lete hain, par yeh galat hai.

  • Short name: Hypo
  • Chemical name: Sodium thiosulphate
  • Formula: Na2S2O3
  • Type: Salt (acid nahi)
  • Appearance: White crystalline solid
Hypo
Hypo — Image: Pixabay / Pexels

Hypo kaise prepare karte hain? Do main methods

Hypo banane ke do common tarike hain. Pehla hai boiling method, aur doosra hai chlorine method. Dono ko exam ke liye yaad rakhna zaroori hai.

Boiling method mein sodium sulphite (Na2SO3) ke solution mein sulphur (S) ko boil kiya jata hai. Sulphur dheere-dheere dissolve ho jata hai aur sodium thiosulphate ban jata hai. Is method ka equation hai: Na2SO3 + S -> Na2S2O3.

Doosra method: sodium thiosulphate ke solution mein chlorine gas pass ki jati hai. Yeh bhi ek standard preparation method hai.

Boiling method ka equation

Equation: Na2SO3 + S -> Na2S2O3. Yani sodium sulphite plus sulphur gives sodium thiosulphate. Exam mein yeh equation aksar poochhi jati hai, isliye ise likhkar yaad karo.

Photography mein hypo ka use: fixer ka kaam

Photography mein hypo ka sabse famous use hai photo develop karna. Jab film par image banti hai, toh kuch silver bromide unexposed reh jata hai. Agar use hataya na jaye, toh photo kharab ho sakti hai.

Hypo solution unexposed silver bromide ko dissolve kar deta hai. Is process ko fixing kehte hain, aur isliye hypo ko fixer bhi kaha jata hai. Bina fixer ke photo permanent nahi hoti.

  • Hypo solution unexposed silver bromide ko dissolve karta hai.
  • Is process ko fixing kehte hain.
  • Hypo ko photographer ka fixer bhi kehte hain.

Swimming pool mein hypo: chlorine neutralizer

Swimming pool mein chlorine daala jata hai paani ko saaf rakhne ke liye. Lekin zyada chlorine se aankhon mein jalan hoti hai. Hypo chlorine ko neutralize kar deta hai, jisse paani aankhon ke liye comfortable ho jata hai.

Yeh use bahut kam log jaante hain, lekin yeh hypo ka ek important practical application hai.

Laboratory mein hypo: iodine ki maatra naapna

Chemistry lab mein hypo ka use iodine ki maatra (concentration) naapne ke liye hota hai. Is process ko iodometry kehte hain. Hypo iodine ke saath react karta hai, aur is reaction se iodine ki maatra calculate ki jati hai.

Yeh titration ka ek important part hai, jahan hypo ko standard solution ke roop mein use kiya jata hai.

Common mistake: hypo acid hai ya salt?

Bahut students sochte hain ki hypo ek acid hai. Lekin sach yeh hai ki hypo ek salt hai — sodium thiosulphate. Iska naam mein 'sodium' hai, jo ek metal hai, aur thiosulphate ek anion hai. Isliye yeh salt hai.

Exam mein agar poochha jaye 'Hypo is a _', toh answer hoga 'salt', acid nahi. Yeh trap se bacho!

Exam trap: Hypo is a SALT, not an acid!
Exam trap: Hypo is a SALT, not an acid! — Image: K / Pexels

Hypo ko yaad rakhne ki trick: S-P-P

Hypo ke baare mein sab kuch yaad rakhna hai toh yeh trick use karo: S-P-P. S matlab Sulphur se banta hai. P matlab Photography mein fixer. P matlab Pool mein chlorine neutralizer.

Iske alawa formula Na2S2O3 aur preparation ka boiling method bhi yaad rakho. Exam mein yeh 4 points zaroor aate hain: formula, preparation, photography mein use, aur yeh ki yeh salt hai.

Main baatein

  • Hypo ka chemical naam sodium thiosulphate hai aur formula Na2S2O3 hai.
  • Hypo ek salt hai, acid nahi.
  • Ise sodium sulphite solution mein sulphur boil karke banaya jata hai.
  • Photography mein hypo fixer ka kaam karta hai — unexposed silver bromide ko dissolve karke.
  • Swimming pool mein yeh chlorine ko neutralize karta hai.
  • Laboratory mein iodine ki maatra naapne ke liye use hota hai.

Zaroori terms

Hypo
Sodium thiosulphate ka short naam, formula Na2S2O3.
Sodium thiosulphate
Hypo ka chemical naam, ek white crystalline salt.
Fixer
Photography mein wo chemical jo unexposed silver halides ko dissolve karta hai; hypo hi fixer hai.
Fixing
Photographic process jisme hypo se unexposed silver bromide hataya jata hai.
Iodometry
Iodine ki maatra naapne ki titration method jisme hypo use hota hai.
Boiling method
Hypo banane ka tarika jisme sodium sulphite solution mein sulphur boil kiya jata hai.

Practice sawaal

  1. Hypo ka chemical formula kya hai?

    • (a) Na2S2O3
    • (b) Na2SO3
    • (c) Na2S2O4
    • (d) Na2S2O8
    Jawab

    (a) Na2S2O3 — Sodium thiosulphate ka formula Na2S2O3 hota hai.

  2. Hypo kis type ka compound hai?

    • (a) Acid
    • (b) Base
    • (c) Salt
    • (d) Oxide
    Jawab

    (c) Salt — Hypo sodium thiosulphate hai, jo ek salt hai — acid nahi.

  3. Photography mein hypo ka kya kaam hai?

    • (a) Silver bromide ko dissolve karna
    • (b) Image ko colour dena
    • (c) Film ko sensitize karna
    • (d) Lens ko saaf karna
    Jawab

    (a) Silver bromide ko dissolve karna — Hypo unexposed silver bromide ko dissolve karke image ko fix karta hai.

  4. Swimming pool mein hypo kis kaam aata hai?

    • (a) Paani ko garam karna
    • (b) Chlorine ko neutralize karna
    • (c) Paani mein oxygen badhana
    • (d) Paani ko thanda karna
    Jawab

    (b) Chlorine ko neutralize karna — Hypo chlorine ko neutralize karta hai jisse aankhon mein jalan nahi hoti.

  5. Hypo banane ka boiling method equation kya hai?

    • (a) Na2SO3 + S -> Na2S2O3
    • (b) Na2SO4 + S -> Na2S2O3
    • (c) Na2S + O2 -> Na2S2O3
    • (d) Na2SO3 + Cl2 -> Na2S2O3
    Jawab

    (a) Na2SO3 + S -> Na2S2O3 — Sodium sulphite aur sulphur ke reaction se sodium thiosulphate banta hai.

Aksar pooche jaane wale sawaal

Hypo ka full form kya hai?

Hypo kisi ka full form nahi hai; yeh sodium thiosulphate ka common short naam hai. Chemical formula Na2S2O3 hai. Ise photographer's fixer bhi kaha jata hai kyunki yeh photography mein use hota hai.

Kya hypo ek acid hai?

Nahi, hypo ek salt hai — sodium thiosulphate. Yeh sodium ions aur thiosulphate ions se bana hota hai. Acid nahi hai. Exam mein yeh common misconception ban sakta hai, isliye dhyan rakho.

Hypo kaise banaya jata hai?

Do main methods hain: (1) Sodium sulphite (Na2SO3) solution mein sulphur (S) ko boil karna — Na2SO3 + S -> Na2S2O3. (2) Sodium thiosulphate solution mein chlorine gas pass karna. Pehla method zyada common hai.

Photography mein hypo ka kya role hai?

Photo develop karte waqt unexposed silver bromide ko hatana hota hai. Hypo us silver bromide ko dissolve kar deta hai. Is process ko fixing kehte hain, aur isliye hypo ko fixer kaha jata hai.

Swimming pool mein hypo kyun daalte hain?

Swimming pool mein chlorine paani saaf karne ke liye daala jata hai, lekin zyada chlorine se aankhon mein jalan hoti hai. Hypo chlorine ko neutralize karta hai, jisse paani aankhon ke liye safe ho jata hai.

Jaldi se recap: Hypo sodium thiosulphate (Na2S2O3) ka short naam hai, jo ek salt hai. Ise sodium sulphite solution mein sulphur boil karke banaya jata hai. Photography mein fixer, swimming pool mein chlorine neutralizer, aur labs mein iodine measure karne ke liye use hota hai. Yaad rakho: S-P-P — Sulphur, Photography, Pool.

Sources aur aage padhne ke liye

Know.it editorial team

Ye article Know.it editorial team ne ek animated Know.it lesson ki script se likha hai, aur lesson ke facts aur neeche diye sources se check kiya hai. Know.it kisi bhi sawaal ko voice aur animation wale chhote lesson mein badal deta hai.

Reviewed: 11 November 2026 · Editorial standards · AI transparency

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