Which of the following solutions, when mixed, will not form a buffer solution?
Show Hint
- 100 mL 0.1 M NaOH + 50 mL 0.1 M CH3COOH
- 50 mL 0.1 M NaOH + 100 mL 0.1 M CH3COOH
- 50 mL 0.1 M NH4OH + 50 mL 0.1 M CH3COOH
- 50 mL 0.1 M HCl + 100 mL 0.1 M CH3COONa
The Correct Option is A
Solution and Explanation
Top Questions on Acid-base equilibria
- \( K_a \) for \( \text{CH}_3 \text{COOH} \) is \( 1.8 \times 10^{-5} \) and \( K_b \) for \( \text{NH}_4 \text{OH} \) is \( 1.8 \times 10^{-5} \). The pH of ammonium acetate solution will be:
- JEE Main - 2024
- Chemistry
- Acid-base equilibria
Your teacher uses a weighing balance to take equal amounts of two substances, tartaric acid and washing soda, say 1g. Each is dissolved separately into 100 cc of water.
(A) In 1 drop of the acid solution and 1 drop of the basic solution, we have:
1. equal amount of acid and base respectively
2. equally acidic and basic substance respectively
3. acidity in one and basicity in the other are not equal
4. equal magnitude of the quantity —pH-7—
(B) Take a few cc of the acidic solution in a test-tube and mix a few drops of coloured
phenolphthaline solution (prepared in basic medium) into it. Which of the following may be 4
happening:
1. The colour of the solution instantly changes pink
2. remains colourless as the colour of the added drops disappears
3. the colour diffuses through the solution and finally disappears
4. the colour diffuses through the solution and finally the entire solution acquires a faint pink
colour.- IIITH UGEE
- Chemistry
- Acid-base equilibria
Questions Asked in IIITH UGEE exam
- When I was a child, there used to be a fair in my town during the Diwali and Id festivities. Among the many things I saw was a strange puppet show. There were three puppets, one of a man, another of a woman, and the third one of a rakshasa (demon). Whenever the rakshasa was brought close to the woman, she would turn her face away. But when the man was brought close to her, she would turn back and face the man.
- IIITH UGEE
- Sequence and Series
- Given below is an encrypted sentence: SJ HVJ HMM GPVC BHI. LPBJ VJBHEC LP. – LHBZJM GJFAJXX Decode it based on the clues given below. % Clues Clues: Clue-1: H stands for A
Clue-2: B stands for E
Clue-3: C stands for N
Clue-4: L stands for S
Clue-5: I stands for D- IIITH UGEE
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- Three pipes A, B, and C can fill a tank in 6 hrs. After working at it together for 2 hrs, C is closed and A and B can fill the remaining part in 7 hrs. The total number of hours taken by C alone to fill the tank is
- IIITH UGEE
- Time Speed and Distance
Swahili, a Bantu language, is spoken in the southern and eastern coasts of Africa. Match the Swahili dates to the correct English translations.
1. tarehe tatu Disemba jumamosi (A) Monday, October 5th
2. tarehe tano Oktoba jumapili (B) Tuesday, April 2nd
3. tarehe pili Aprili jumanne (C) Wednesday, October 5th
4. tarehe tano Oktoba jumatatu (D) Tuesday, April 4th
5. tarehe nne Aprili jumanne (E) Sunday, October 5th
6. tarehe tano Oktoba jumatano (F) Saturday, December 3rd
(G) Sunday, December 3rd
(H) Saturday, July 1st- IIITH UGEE
- Adjective phrases
Papago Problem: Tohono O’odham, formerly known as Papago, is spoken in
south-central Arizona in the U.S. and in northern Sonora in Mexico. Match each Tohono
O’odham sentence with its English translation.
(1) Ha-cecposid ‘o g wakial g wipsilo. (A) I am speaking
(2) Pi ‘ac ˜ne˜nok ‘a:cim. (B) The man is speaking.
(3) Ceposid ‘o g wakial g wisilo. (C) I am working.
(4) Pi ‘o cickpan g cecoj. (D) The cowboys aren’t branding the calf.
(5) Pi ‘o ceposid g wapkial g wisilo. (E) We are not speaking.
(6) Cipkan ‘a˜n ‘a:˜ni. (F) The men are working.
(7) ˜Neok ‘o g ceoj. (G) The cowboy is branding the calf.
(8) ˜Neok ‘a˜n ‘a:˜ni. (H) The cowboy is branding the calves.
(I) The men are not working.- IIITH UGEE
- Adjective phrases