मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Answer the Following: If Ph Value of Solution ‘A’ is 8, Ph Value of Solution ‘B’ is 7 and Ph Value of Solution ‘C’ is 5.5 Then: - Science and Technology 1

Advertisements
Advertisements

प्रश्न

Answer the following:

If pH value of solution ‘A’ is 8, pH value of solution ‘B’ is 7 and pH value of solution ‘C’ is 5.5 then:

(i) Which solution is acidic?
(ii) Which solution is basic?
(iii) Which solution is neutral?
टीपा लिहा

उत्तर

(i) Solution 'C' is acidic.

(ii) Solution 'A' is basic.

(iii) Solution 'B' is neutral.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2013-2014 (October)

APPEARS IN

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Draw neat and labelled diagram of pH scale.


The pH of rainwater is 7.


Higher the pH value of a solution, the more ______ it is.


The colour of universal indicator solution is ____________.

(a) red
(b) blue
(c) green
(d) greenish yellow


Fill in the blank
Magnesia is used in making __________.


A solution 'X' gives orange colour when a drop of it falls on pH paper, while another solution 'Y' gives bluish colour when a drop of it falls on pH paper. What is the nature of both solutions? Determine the pH of solutions 'X' and 'Y'.


Give the tests to identify Acids and Bases.


A solid compound ‘A’ decomposes on heating into ‘B’ and a gas ‘C’. On passing the gas ‘C’ through water, it becomes acidic. Identify A, B, and C.


Tomato is a natural source of which acid?


Which of the following statements is correct about an aqueous solution of an acid and of a base?

(i) Higher the pH, stronger the acid

(ii) Higher the pH, weaker the acid

(iii) Lower the pH, stronger the base

(iv) Lower the pH, weaker the base


When copper oxide and dilute hydrochloric acid react, colour changes to ____________.


Which of the following is used for the dissolution of gold?


Which of the following are present in a dilute aqueous solution of hydrochloric acid?


pH of H2O is ____________.


Ag2S reacts with H2SO4 to form ____________.


Assertion: Carbonic acid is a weak acid.

Reason: It ionised completely in an aqueous solution.


Assertion: Fresh milk in which baking soda is added, takes a longer time to set as curd.

Reason: Baking soda decreases the pH value of fresh milk to below 6.


The table provides the pH value of four solutions P, Q, R and S.

Solution pH value
P 2
Q 9
R 5
S 11

Which of the following correctly represents the solutions in increasing order of their hydronium ion concentration?


The pH of the gastric juices released during digestion is


Equal volumes of hydrochloric acid and sodium hydroxide solutions of same concentration are mixed and the pH of the resulting solution is checked with a pH paper. What would be the colour obtained?


The pH value of neutral solution is ______.


The pH of stomach fluid is  ______.


pH stands for ______ in a solution.


pH value of human blood is ______.


Define indicator. Give examples


Correct the wrong statement given below:

An acid is the compound which are capable of forming hydroxyl ions (OH ) in aqueous solution. 


A solution turns the colour of turmeric to reddish brown. If the same solution is poured on universal indictor, its colour would change to ______.


There are four solutions A, B, C and D with pH values as follow:

Solution A B C D
pH 2.0 7.0 8.0 12.0

Which solution(s) would liberate hydrogen gas with zinc?


List the role of each of the following in our digestive system:

  1. Hydrochloric acid
  2. Trypsin
  3. Muscular walls of stomach
  4. Salivary amylase

Mohan has three solutions P, Q and R having a pH of 13, 5 and 2 respectively. Which of the above solutions P, Q or R will react with magnesium to liberate hydrogen gas?


Mohan has three solutions P, Q and R having a pH of 13, 5 and 2 respectively. Which of the above solutions P, Q or R will contain molecules as well as ions?


Rohit has solution X, Y and Z that has pH 2, 7 and 13 respectively.

Which solution will liberate ammonia gas when reacted with ammonium chloride?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×