Exam (elaborations)
AQA A-LEVEL CHEMISTRY CHEMICAL TESTS QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
- Module
- Institution
AQA A-LEVEL CHEMISTRY CHEMICAL TESTS QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
[Show more]
Seller
Follow
Performance
Reviews received
Content preview
AQA A -LEVEL CHEMISTRY CHEMICAL TESTS QUESTIONS AND ANSWERS WITH SOLUTIONS 2024 test for Carbon Dioxide (CO2 ) - ANSWER turns limewater milky (sparingly soluble Ca(OH) 2 forms insoluble CaCO3 ) Chlorine (Cl2 ) test - ANSWER bleaches damp litmus paper (Cl2 reacts with water to form HCl and HOCl) Hydrogen (H2 ) test - ANSWER pops with a lighted splint Oxygen (O2 ) test - ANSWER relights a glowing splint Carbonate (CO 3 2 - ) test - ANSWER add dilute acid; effervescence, carbon dioxide produced Sulfate (SO4 2 - ) test - ANSWER add dilute nitric acid then aqueous barium nitrate. Gives white precipitate Chloride (Cl - ) test - ANSWER add dilute nitric acid then aqueous silver nitrate. Gives white precipitate. Dissolves in dilute ammonia to give colourless solution (of [Ag(NH 3 ) 2 ] + ) Bromide (Br - ) test - ANSWER add dilute nitric acid then aqueous silver nitrate. Gives cream precipitate. Dissolves in concentrated ammonia but not in dilute ammonia Iodide (I - ) test - ANSWER add dilute nitric acid then aqueous silver nitrate. Gives yellow precipitate. Does not dissolve in either concentrated or dilute ammonia Iron II (Fe 2+ ) test - ANSWER add aqueous sodium hydroxide gives green precipitate, insoluble in excess Iron III (Fe 3+ ) test - ANSWER add aqueous sodium hydroxide gives orange/brown precipitate, insoluble in excessThe benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Performance. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £10.68. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
71498 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now