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Indiy havoda ko`k rangli bo`lib yonib In2O3 indiy III oksidini hosil qiladi. Agar u galogenlar yoki oltingugurt ishtirokida qizdirilsa, to'g'ridan-to'g'ri birikma hosil bo'ladi. Indiy eng yuqori oksidlanish darajasiga o'tadi.
Boshqa galogenidlar (InX va InX2, bu erda X galogen), InF va InF2 ning istisnolaridan tashqari tayyorlangan. Faqat galogenidlar, InX3, suv ishtirokida barqarordir. Indiyning uchta tri-ftoridlari, InF3 · 3H2O va InF3 · 9H2O kristallogiratlari va suvsiz tuz, InF3 mavjud. Indiy birikmalarining aksariyati suvda eriydi.
Ex. 2. Give the English equivalents for the following:
Ko'p yillar davomida, bir foizdan ortiq miqdorda, bir necha usullarni, suyultirilgan sulfat kislotani, filtrdagi deyarli barcha moddalarni, natijada olingan eritmani, xarakterli xususiyatlarni namoyish etadigan, havoda bir hovuch, to'g'ridan-to'g'ri ulanishni ko'rib chiqish deyarli mumkin emas. , har bir holatda, biror narsa bundan mustasno, suv borligida, suvsiz tuz, ko'p birikmalar, konsentrlangan kislota, tenglama bo'yicha (tenglama bo'yicha), spektral tahlil
Over the years, more than one percent, several methods, dilute sulfuric acid, almost all the substances in the filter, the resulting solution, a handful in the air, exhibiting characteristic properties, direct contact 'rib out is almost impossible. , in each case, except for something, in the presence of water, anhydrous salt, many compounds, concentrated acid, by equation (by equation), spectral analysis
Ex. 3. Fill in the blanks with prepositions where necessary.of, at, in, between, with, from, according to, for
1.For many years indium was regarded as a laboratory curiosity. 2. There are several methods of extracting indium from its ores. 3 To one of the methods was obtaining indium, indium-bearing zinc is treated of dilute H2S04.4. Indium exhibits properties characteristic of the aluminium group. 5. Indium bums in air wuth a blue flame. 6. If indium is heated in the presence of galogens or sulphur, direct combination takes place. 7 each case indiumis to its highest oxidation state. 8. Only the halides, InX3, are stable in the presence of water. 9. Most indium compounds are soluble in water. 10. Indium lies between. iron and tin at the electromotive series. 11. Characteristic spectral blue lines from indium occurbetween 451.1mμ and 410.1 mμ
Ex. 4. a) Mind:
No article is used before nouns denoting some branch of science, the names of chemical elements and the word school.
Examples: 1. My younger sister goes to school.
2. While at school 1 liked chemistry best.
3. Indium has an electrodc potential of -+0.336 volt.
Ex. 5. Translate the sentences into Uzbek, paying attention to the subjunctive mood.
1. Uglerod, kislorod, vodorod va boshqalar kabi elementlarsiz hayot bo'lmaydi. 2. Moddalar toza bo'lishi kerak. 3. O'qituvchi reaksiya tenglamasini doskaga yozishni taklif qildi.4. Eritma juda kuchli bo'lmasligi uchun suyultiriladi. 5. Agar ular vaqt topsalar, buni yana bir bor qilishardi. 6. Reaksiya asta-sekin sodir bo'lishi sharti qo'yildi. 7. U bizga yangi vaqt jadvali haqida aytib berishi kerak edi. 8. U buni kecha qilishi kerak edi, ammo uning natijalari aniq emasligini bilmas edi. 9. Isitish yoki sovutish suvning holatiga ta'sir qiladi, lekin uning tarkibiga emas. 10. Quruq gaz kamroq hajmni egallaydi. 11. Kisloroddan ko'ra ko'proq elementni topish qiyin bo'lar edi. 12. Korroziya kislorod ishtirokida juda tezroq bo`ladi. 13. Hisoblashni boshlaymiz, ammo bizda kerakli ma'lumotlar yo'q. 14. Siz bularning yonuvchan moddalar ekanligini bilishingiz kerak edi. 15. Ular olingan moddalarning xususiyatlarini tavsiflashlari kerak edi. 16. Eksperiment kimyoning asosidir, desak to'g'ri bo'ladi. 17. Yangi apparat aniqroq natijalarni bergan bo'lar edi. 18. Suvni bug'ga aylantirish zarur. 19.1, agar u to'g'ri bo'lsa edi. 20.1 o'qituvchidan so'rashi kerak edi, lekin men seminarga kela olmadim. 21. Ular tajribani birdan boshlashni taklif qilishadi. Yangi apparat aniqroq natijalarni bergan bo'lar edi.
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