What is a solution considered to be if it has pH lower than7?

What is a solution considered to be if it has pH lower than7?
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.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 (a) (i) and (iii) (b) (ii) and (iii (c) (i) and (iv) (d) (ii) and (iv)

Description : .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, ... (i) and (iii) (b) (ii) and (iii (c) (i) and (iv) (d) (ii) and (iv)

Last Answer : (d) (ii) and (iv)

Pick up the incorrect statement from the following: (A) The pH value of water indicates the logarithm of reciprocal of hydrogen ion concentration in water (B) Higher value of pH means lower hydrogen ion concentration (C) Lower value of pH means higher hydrogen ion contraction (D) Lower value of pH gives alkaline solution

Description : Pick up the incorrect statement from the following:  (A) The pH value of water indicates the logarithm of reciprocal of hydrogen ion concentration in  water  (B) Higher value of pH ... value of pH means higher hydrogen ion contraction  (D) Lower value of pH gives alkaline solution 

Last Answer : (D) Lower value of pH gives alkaline solution 

Several approaches have been suggested to increase the fixation of professionally applied topical fluoride, which of the following statements IS INCORRECT regarding increasing the fixation? A. Increase concentration of fluoride in solutions B. Raise the PH of the fluoride solution C. Increase the exposure time to topical fluoride D. Pre-treat the enamel with 0.5% phosphoric acid E. Use NH4F rather than NaF at a lower PH

Description : Several approaches have been suggested to increase the fixation of professionally applied topical fluoride, which of the following statements IS INCORRECT regarding increasing the fixation? A. Increase concentration of ... with 0.5% phosphoric acid E. Use NH4F rather than NaF at a lower PH

Last Answer : B. Raise the PH of the fluoride solution

Relative to a solution with a pH of 4, a solution of pH = 6 is: w) higher in H+ concentration x) lower in OHy) less basic z) less acidic

Description : Relative to a solution with a pH of 4, a solution of pH = 6 is: w) higher in H+ concentration x) lower in OHy) less basic z) less acidic

Last Answer : ANSWER: Z -- LESS ACIDIC

How do I lower the pH in a freshwater pond?

Description : How do I lower the pH in a freshwater pond?

Last Answer : Add a Peat ball or log or some liquid barley

Which of the following concerning the pH of urine is correct? 1) is a useful indicator of the acid/base balance of the blood 2) rises on a vegetarian diet 3) is determined by the concentration of ammonium 4) is lower than 5.5 in renal tubular acidosis 5) would be above 7.0 after prolonged and severe vomiting

Description : Which of the following concerning the pH of urine is correct? 1) is a useful indicator of the acid/base balance of the blood 2) rises on a vegetarian diet 3) is determined by the concentration of ... lower than 5.5 in renal tubular acidosis 5) would be above 7.0 after prolonged and severe vomiting

Last Answer : Answers-2 c - excretion of ammonium occurs when an acid urine is produced but the pH of urine is of course determined by the concentration of H+ ions d-unable to lower the pH to ... and distal nephron and this perpetuates the metabolic alkalosis until the fluid balance is restored with IV fluids.

The tear film: a. has a higher pH than the serum b. has a lower concentration of glucose than the serum c. the oily component is secreted by the meibomian glands d. all above

Description : The tear film: a. has a higher pH than the serum b. has a lower concentration of glucose than the serum c. the oily component is secreted by the meibomian glands d. all above

Last Answer : all above

What is common among amylase, rennin and trypsin? (a) These are produced in stomach. (b) These act at a pH lower than 7. (c) These all are proteins. (d) These all are proteolytic enzymes.

Description : What is common among amylase, rennin and trypsin? (a) These are produced in stomach. (b) These act at a pH lower than 7. (c) These all are proteins. (d) These all are proteolytic enzymes.

Last Answer : (c) These all are proteins.

The pH value of Puzzolanic concrete is ________________ that of ordinary concrete [ A ] lower than [ B ] much lower than [ C ] higher than [ D ] equal

Description : The pH value of Puzzolanic concrete is ________________ that of ordinary concrete [ A ] lower than [ B ] much lower than [ C ] higher than [ D ] equal

Last Answer : [ B ] much lower than

The pH value of Puzzolanic concrete is ________________ that of ordinary concrete [ A ] lower than [ B ] much lower than [ C ] higher than [ D ] equal

Description : The pH value of Puzzolanic concrete is ________________ that of ordinary concrete [ A ] lower than [ B ] much lower than [ C ] higher than [ D ] equal

Last Answer : [ B ] much lower than

What is common among amylase, rennin and trypsin (a) All are protein (b) These are all proteolytic enzyme (c) These are produced in stomach (d) These act at a pH lower than 7

Description : What is common among amylase, rennin and trypsin (a) All are protein (b) These are all proteolytic enzyme (c) These are produced in stomach (d) These act at a pH lower than 7

Last Answer : (a) All are protein

If a pH of a solution is 7.6, what is the pOH?

Description : If a pH of a solution is 7.6, what is the pOH?

Last Answer : The pOH is 6,4.

which. orange juice is a solution that contains citric acid, which gives orange juice an approximate pH of 3.5. Which substance is more acidic than orange juice?

Description : which. orange juice is a solution that contains citric acid, which gives orange juice an approximate pH of 3.5. Which substance is more acidic than orange juice?

Last Answer : battery acid with a pH of 0.8

From separate solution of four sodium salt NaW, Nax, NaY and NaZ had pH 7.0 , 9.0 , 10 . 0 and 11.0 respectively , when each solution was 0.1 M , the

Description : From separate solution of four sodium salt NaW, Nax, NaY and NaZ had pH 7.0 , 9.0 , 10 . 0 and 11.0 respectively , when each solution was 0.1 M , the

Last Answer : From separate solution of four sodium salt NaW, Nax, NaY and NaZ had pH 7.0 , 9.0 , 10 . 0 and 11.0 ... acid is :- A. HW B. HX C. HY D. HZ

Number of equivalents of HCl present in 100 mL of its solution whose pH is 4:

Description : Number of equivalents of HCl present in 100 mL of its solution whose pH is 4:

Last Answer : Number of equivalents of HCl present in 100 mL of its solution whose pH is 4: A. `10^(-4)` B. `10^(-3)` C. `10^(-2)` D. `10^(-5)`

An aquoeous solution twice alkaline as water, The pH of the solution is near to

Description : An aquoeous solution twice alkaline as water, The pH of the solution is near to

Last Answer : An aquoeous solution twice alkaline as water, The pH of the solution is near to A. 6.7 B. 6.4 C. 7.3 D. 7.6

The `pH` of a solution increased from `3` to `6`. Its `[H^(o+)]` will be

Description : The `pH` of a solution increased from `3` to `6`. Its `[H^(o+)]` will be

Last Answer : The `pH` of a solution increased from `3` to `6`. Its `[H^(o+)]` will be A. Reduced ... . Doubled C. Reduced by 1000 times D. Increased by 1000 times

Which of the following compounds when dissolved in water, gives a solution with pH less than seven ?

Description : Which of the following compounds when dissolved in water, gives a solution with pH less than seven ?

Last Answer : Which of the following compounds when dissolved in water, gives a solution with pH less than seven ? A. `CH_(3)COCH_( ... (5)NH_(2)` D. `C_(2)H_(5)OH`

When `O_(3)` is passed through an aqueous solution of KI, the pH of the resulting solution is

Description : When `O_(3)` is passed through an aqueous solution of KI, the pH of the resulting solution is

Last Answer : When `O_(3)` is passed through an aqueous solution of KI, the pH of the resulting solution is A. 7 B. `6.8` C. `2.8` D. 43752

What is the colour of carbon dioxide solution on a pH scale?

Description : What is the colour of carbon dioxide solution on a pH scale?

Last Answer : Need answer

What do we call substances that change colour depending on the pH of the solution they are?

Description : What do we call substances that change colour depending on the pH of the solution they are?

Last Answer : yes well you dont have to pay at all

What is the pH value and colour of paper of ammonia solution?

Description : What is the pH value and colour of paper of ammonia solution?

Last Answer : Need answer

What type of solution has a pH of 7 Acid basic or neutral?

Description : What type of solution has a pH of 7 Acid basic or neutral?

Last Answer : What is the answer ?

What are the advantages and disadvantages of measuring pH of lemon juice with indicator solution?

Description : What are the advantages and disadvantages of measuring pH of lemon juice with indicator solution?

Last Answer : kkjhkvgbvbbhhh

What is the pH of a solution with H3O plus 1 x 10-9 M?

Description : What is the pH of a solution with H3O plus 1 x 10-9 M?

Last Answer : Need answer

What is the pH of a solution with H plus 7.0 Times 10-7?

Description : What is the pH of a solution with H plus 7.0 Times 10-7?

Last Answer : Need answer

What are the advantages and disadvantages of measuring pH of lemon juice with indicator solution?

Description : What are the advantages and disadvantages of measuring pH of lemon juice with indicator solution?

Last Answer : kkjhkvgbvbbhhh

What is the ph of saline solution?

Description : What is the ph of saline solution?

Last Answer : No specific pH

If the pH of a solution is 3.9, what would the pOH be?

Description : If the pH of a solution is 3.9, what would the pOH be?

Last Answer : 10,1

How do test the ph of salt solution?

Description : How do test the ph of salt solution?

Last Answer : acidic, neutral, or basic. Salts that form from a strong acid and a weak base are acid salts, like ammonium chloride

What is the pH of a solution with [H+] = 7.0 x 10-2?

Description : What is the pH of a solution with [H+] = 7.0 x 10-2?

Last Answer : 1.15

If the pH of a solution is 10.7, what would the pOH be?

Description : If the pH of a solution is 10.7, what would the pOH be?

Last Answer : 3.3 (apex)

In a solution containing phosphate buffer, the pH will be 7.4, if the ratio of monohydrogen phosphate : dihydrogen phosphate is (A) 4 : 1 (B) 5 : 1 (C) 10 : 1 (D) 20 : 1

Description : In a solution containing phosphate buffer, the pH will be 7.4, if the ratio of monohydrogen phosphate : dihydrogen phosphate is (A) 4 : 1 (B) 5 : 1 (C) 10 : 1 (D) 20 : 1

Last Answer : Answer : A

In a solution having a pH of 7.4, the hydrogen ion concentration is (A) 7.4 nmol/L (B) 40 nmol/L (C) 56 nmol/L (D) 80 nmol/L

Description : In a solution having a pH of 7.4, the hydrogen ion concentration is (A) 7.4 nmol/L (B) 40 nmol/L (C) 56 nmol/L (D) 80 nmol/L

Last Answer : Answer : B

A 0.22 M solution of lactic acid (pKa 3.9) was found to contain 0.20 M in the dissociated form and 0.02 M undissociated form, the pH of the solution is (A) 2.9 (B) 3.3 (C) 4.9 (D) 5.4

Description : A 0.22 M solution of lactic acid (pKa 3.9) was found to contain 0.20 M in the dissociated form and 0.02 M undissociated form, the pH of the solution is (A) 2.9 (B) 3.3 (C) 4.9 (D) 5.4

Last Answer : Answer : C

Which of the following is not true regarding enzymes? (A) They catalyze only a particular type of reaction (B) They remain active even after separation from the source (C) They are destroyed after the completion of the reaction they catalyse (D) They are irreversibly destroyed at high temperature (E) Their activity depends on the pH of the solution

Description : Which of the following is not true regarding enzymes? (A) They catalyze only a particular type of reaction (B) They remain active even after separation from the source (C) They are destroyed ... They are irreversibly destroyed at high temperature (E) Their activity depends on the pH of the solution

Last Answer : Answer : C

Enzymes activity is controlled by (A) pH of the solution (B) Temperature (C) Concentration of the enzyme (D) Concentration of the substrate (E) All of these

Description : Enzymes activity is controlled by (A) pH of the solution (B) Temperature (C) Concentration of the enzyme (D) Concentration of the substrate (E) All of these

Last Answer : Answer : C

If all the enzymes, intermediates and cofactors of the citric acid cycle as well as an excess of the starting substrate acetylCoA are present and functional in an organelle free solution at the appropriate pH, which of the following factors of the citric acid cycle would prove to be rate limiting? (A) Molecular oxygen (B) Half life of enzyme (C) Turnover of intermediates (D) Reduction of cofactors

Description : If all the enzymes, intermediates and cofactors of the citric acid cycle as well as an excess of the starting substrate acetylCoA are present and functional in an organelle free solution at the appropriate ... oxygen (B) Half life of enzyme (C) Turnover of intermediates (D) Reduction of cofactors

Last Answer : Answer : D

At neutral pH, a mixture of amino acids in solution would be predominantly: (A) Dipolar ions (B) Nonpolar molecules (C) Positive and monovalent (D) Hydrophobic

Description : At neutral pH, a mixture of amino acids in solution would be predominantly: (A) Dipolar ions (B) Nonpolar molecules (C) Positive and monovalent (D) Hydrophobic

Last Answer : Answer : A

PH is the negative logarithm of the hydrogen Ion Concentration express4ed in moles/liter of aqueous solution. PH of buffer solution is calculated by. Henderson’s equation Name the best indicator Phenolphthalein, PH range 8.3 to 10.0 Chemical kinetics deals with study of. Rates and mechanisms of chemical and Biochemical reactions

Description : PH is the negative logarithm of the hydrogen Ion Concentration express4ed in moles/liter of aqueous solution. PH of buffer solution is calculated by. Henderson's equation Name the best ... Chemical kinetics deals with study of. Rates and mechanisms of chemical and Biochemical reactions

Last Answer : What does Thermodynamics helps in predicting ?

The pH value of 12 may be of an aqueous solution of 1. Sodium hydroxide 2. Lithium hydroxide 3. Sodium chloride 4. Hydrogen chloride The correct statements are: (a) 1 and 2 (b) 2 and 4 (c) 3 and 4 (d) 1 and 4

Description : The pH value of 12 may be of an aqueous solution of 1. Sodium hydroxide 2. Lithium hydroxide 3. Sodium chloride 4. Hydrogen chloride The correct statements are: (a) 1 and 2 (b) 2 and 4 (c) 3 and 4 (d) 1 and 4

Last Answer : Ans:(a)

If a solution turns blue litmus red, its pH is likely to be : (1) 7 (2) 8 (3) 9 (4) 6

Description : If a solution turns blue litmus red, its pH is likely to be : (1) 7 (2) 8 (3) 9 (4) 6

Last Answer : (4) 6 Explanation: An acidic solution turns blue litmus red. On the pH scale, acids have values less than 7, whereas bases have values greater than 7. Solutions with pH equal to 7 are neutral in nature. Therefore the pH of the given solution is likely to be 6.

A solution turns blue litmus red, its pH is likely to be - (1) 11 (2) 9 (3) 5 (4) 10

Description : A solution turns blue litmus red, its pH is likely to be - (1) 11 (2) 9 (3) 5 (4) 10

Last Answer : (3) 5 Explanation: If the litmus paper turns red, it indicates the presence of an acid while if it turns blue, it indicates the presence of a base.

The apparatus used to test acidity of aqueous solution is - (1) pH meter (2) Ammeter (3) Hygrometer (4) Acidmeter

Description : The apparatus used to test acidity of aqueous solution is - (1) pH meter (2) Ammeter (3) Hygrometer (4) Acidmeter

Last Answer : (1) pH meter Explanation: A pH meter is an electronic device used for measuring the pH (acidity or alkalinity) of a liquid. A typical pH meter consists of a special measuring probe (a glass electrode) connected to an electronic meter that measures and displays the pH reading.

The pH of a neutral solution is - (1) 0-7 (2) 7 (3) 7-14 (4) None of the above

Description : The pH of a neutral solution is - (1) 0-7 (2) 7 (3) 7-14 (4) None of the above

Last Answer : (2) 7 Explanation: The pH of a neutral solution is 7. Values less than 7 on the pH scale represent an acidic solution. As the pH value increases from 7 to 14, the solution turns more basic.

pH value generally starts from O and ends at 14. Neutral solution have?

Description : pH value generally starts from O and ends at 14. Neutral solution have?

Last Answer : pH 7

Solution which resists changes in pH caused by the addition of acid or alkali?

Description : Solution which resists changes in pH caused by the addition of acid or alkali?

Last Answer : Buffer solution

The isoelectric point of a protein is (a) the pH at which the protein molecule has no charges on its surface. (b) the pH at which a protein in solution has an equal number of positive and negative charges. (c) the electric charge under isothermal conditions. (b) None of these

Description : The isoelectric point of a protein is (a) the pH at which the protein molecule has no charges on its surface. (b) the pH at which a protein in solution has an equal number of positive and negative charges. (c) the electric charge under isothermal conditions. (b) None of these

Last Answer : the pH at which a protein in solution has an equal number of positive and negative charges

Which of the following is correct for an amino acid solution when it is in the acidic form? (a) pH > pKa (b) pH < pKa (c) zwitterionic (d) pH = 7

Description : Which of the following is correct for an amino acid solution when it is in the acidic form? (a) pH > pKa (b) pH < pKa (c) zwitterionic (d) pH = 7

Last Answer : pH < pKa