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ICSE Class 10 Answered

HOW CAN ZnCo3 be formed from H2So4 in a 2 step method?
Asked by cbiswajit | 20 Dec, 2018, 18:07: PM
answered-by-expert Expert Answer
ZnCO3 is formed from H2SO4 in two steps:
 
Zn + H2SO4   → ZnSO4 + H2
 
ZnSO4 + Na2CO3 →  ZnCO3 + Na2SO4 
Answered by Varsha | 21 Dec, 2018, 13:11: PM

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ICSE 10 - Chemistry
Rewrite the following statements by adding the correct word as shown in the example: Example: Given Statement: Ammonia changes moist red litmus to blue. Correct Statement: Aqueous ammonia changes moist red litmus to blue. (a) Sulphuric Acid acts as a dehydrating agent. (b) Ammonia reacts with chlorine to give ammonium chloride and nitrogen.  
Asked by sagarmishra | 11 Mar, 2024, 18:36: PM
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ICSE 10 - Chemistry
write an equation for the reaction of SO² with h²O
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Asked by daswar4566 | 06 Feb, 2024, 20:38: PM
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ICSE 10 - Chemistry
draw a draft to show Difference between HCl, HNO3 and H2SO4.
Asked by praggya.srivastava.g1972 | 22 Aug, 2023, 16:45: PM
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ICSE 10 - Chemistry
Why H2SO4 is used in the laboratory preparation of HCl?
Asked by himnishagarwal1812 | 05 Jan, 2022, 17:31: PM
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ICSE 10 - Chemistry
X is formed when SO3 is dissolved in Sulphuric acid.  
Asked by rekhavaradkar53 | 04 Jan, 2022, 21:40: PM
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ICSE 10 - Chemistry
13. Write the balanced chemical equation to support each of the statements given below (use only dilute sulphuric acid). a. Basic oxide + acid → salt + water b. Metallic carbonate + acid → salt + water + carbon dioxide
Asked by Rohithgff | 22 Feb, 2021, 04:44: AM
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ICSE 10 - Chemistry
Name the gas evolved when: dil. sulphuric acid reacts with sodium sulphite. Give the balanced chemical equation of the reaction as well.
Asked by ramasareverma99 | 26 Oct, 2020, 21:35: PM
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ICSE 10 - Chemistry
 we know water is a non electrolyte since it requires h2so4 to ionize to positively harged hydronium ions and sulphate ions then what property of water makes itself ionize to h+ and oh- ions along with the ionization of the dissolved salts ??  is it so if then why??
Asked by Himadri | 26 Jul, 2020, 23:01: PM
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ICSE 10 - Chemistry
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Asked by barunthakur234 | 01 Jul, 2020, 16:08: PM
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ICSE 10 - Chemistry
Sir/Madam, kindly answer the following:  Why is direct addition of dil. H2SO4 to PbCO3 an impractical methof of preparing lead sulphate? 
Asked by kryngnga | 10 Jun, 2020, 11:15: AM
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