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One weak acid (like `CH_(3)COOH`) and its strong base together with salt (like `CH_(3)COONa`) is a buffer solution. In which pair this type of charact

Monjur Alahi

One weak acid (like `CH_(3)COOH`) and its strong base together with salt (like `CH_(3)COONa`) is a buffer solution. In which pair this type of characteristic is found.
A. HCl and NaCl
B. NaOH and `NaNO_(3)`
C. KOH and KCl
D. `NH_(4)Cl` and `NH_(4)Cl`


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Salim Ahmed Kawsar

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Correct Answer - D
`NH_(4)OH` is a weak acid and `NH_(4)Cl` is a strong base salt.

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Take two test tubes with some water. Add salt powder to one test tube and add crystals of salt to the second one. Observe.

B) size of the solute

2 Answers 1 views
Solution X contains 50 g of salt in 100g of water and solution Y contains 100g of salt in 200g of water.

A) Solution X has the same concentration as solution Y.

2 Answers 1 views
When 6.4 g of `NaHCO_(3)` is added to a solution of `CH_(3)COOH` weighing 20. It is observed that 4.4 g of `CO_(2)` is released into atmosphere and a

Correct Answer - 24.0 g

2 Answers 1 views
A buffer solution can be prepared from a mixture of (1).Sodium acetate and acetic acid in water (2).Sodium acetate and hydrochloric acid in water (3).

Correct Answer - D is the correct answer.

2 Answers 1 views
Statement: A micture of the solution of a weak acid and its conjugates base acts as a good buffer. Explanation: The ratio of the conjugates base acid

Correct Answer - D These are facts.

2 Answers 1 views
When `C_(2)H_(5)OH "and" CH_(3)COOH` are mixed in equivaient proportion, equilibrium is reached when `2//3` of acid and alchol are use. How much ester

Correct Answer - 20

2 Answers 1 views
The IUPAC name for the formula `CH_(3) - overset(CH_(3))overset(|)(C)= CH - COOH` is

Correct Answer - C `{:(" "CH_(3)),(" |"),(overset(4)(C)H_(3)overset(3)(-C)=overset(2)(C)H-overset(1)(C)OOH):}` 3-Methylbut-2-enoic acid

2 Answers 1 views
`CH_(3)-underset((a))underset(Br)underset(|)overset(CH_(3))overset(|)C-CH_(3)," "CH_(3)-underset((b))underset(Br)underset(|)CH-CH_(3)," "CH_(3)-unders

Correct Answer - b (b)

2 Answers 1 views
Which equilibrium can be described as an acid-base reaction using the Lewis acid-base definition but not using the Bronsted-Lowry definition

Correct Answer - D It involves gain and loss of electron pair (Lewis concept).

2 Answers 1 views
Isomerism shown by `CH_(3)-(CH_(2))_(3)-O-CH_(3)` `CH_(3)-CH_(2)-O-CH_(2)-CH_(2)-CH_(3)` `CH_(3)-underset(CH_(3))underset(|)(CH)-O-CH_(2)-CH_(3)` is

Correct Answer - C Metamerism is shown by the different arrangement of alkyl group about functional group.

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