Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

chemistry lab

identification of organic compounds

how to prepare the neutral solution? dissolve a small quantity of the sample in distilled water. put drops of ammonia till you are able to smell ammonia and test the solution using red litmus paper. heat the solution using a porcelain basin till the vapours do not smell ammonia. and again d
how to identify oxalic acid ? dissolve a small quantity of compound in distilled water and add sodium bicarbonate solution to it . immediate effervescence indicates the presences of acidic group.(-COOH group) in oxalic acid.
how to confirm oxalic acid? to a little of the neutral solution of the compound , add acetic acid and CaCl2 solution. A white precipitate of calcium oxalate will be formed.
how to confirm tartaric acid? to a little of the neutral solution of the compound, add equal quantity of tollen's reagent( Ammniacal Silver nitrate). Appearance of metallic silver on the test tube will be the observation. the =CHOH group in tartaric acid
how to succinic acid? In a dry test tube take small amount of the compound and 1-2 crystal of resorcinol; add 2-3 drops of conc H2SOR4. heat the mixture till it becomes reddish brown. add drop of this into about 50 ml of tap water, taken in a small beaker and add 2-3 ml of NaO
how to do the molisch's test? This is an identification test for all carbohydrates indicating the presence of poly hydroxyl group in carbohydrates. all carbohydrates will answer this test. To an aqueous solution of the compound add two drops of 10% alcoholic solution of alpha naphthol
how to do the fehling's test? (distinction of reducing and non reducing sugar)-glucose and fructose will answer to this test while sucrose and starch will not. To an aqueous solution of the solid add few drops of fehlings solution and heat by keeping it in water bath for a minute. A r
Created by: 123sweetru
Popular Engineering sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards