pH scale ranges from (1) 0 – 7 (2) 8 – 14 (3) 0 – 14 (4) None

pH scale ranges from (1) 0 – 7 (2) 8 – 14 (3) 0 – 14 (4) None 
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0 – 14
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pH scale ranges from – (1) 0 - 7 (2) 8 - 14 (3) 0 - 14 (4) None

Description : pH scale ranges from – (1) 0 - 7 (2) 8 - 14 (3) 0 - 14 (4) None

Last Answer : (3) 0 - 14 Explanation: The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than ... is logarithmic and as a result, each whole pH value below 7 is ten times more acidic than the new higher value.

pH-scale ranges from

Description : pH-scale ranges from

Last Answer : 0-14

The magnitude of energy released by an earthquake is usually measured on Richter scale which ranges between (a) 0 to 7 (b) 0 to 8 (c) 0 to 9 (d) 0 to 12

Description : The magnitude of energy released by an earthquake is usually measured on Richter scale which ranges between (a) 0 to 7 (b) 0 to 8 (c) 0 to 9 (d) 0 to 12

Last Answer : (c) 0 to 9

Why is the pH scale always thought of as 0-14?

Description : Why is the pH scale always thought of as 0-14?

Last Answer : 0 means a hydrogen atom… 14 means none…its impossible to have less than zero or higher than 14

pH required for the growth of bacteria is a. 6.8 – 7.2 b. 5.6 – 8.2 c. 3.0 – 6.0 d. 8.0 – 14.0

Description : pH required for the growth of bacteria is a. 6.8 – 7.2 b. 5.6 – 8.2 c. 3.0 – 6.0 d. 8.0 – 14.0

Last Answer : Ans: A

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.

The normal GPT activity ranges from (A) 60.0–250.0 IU/L (B) 4.0–17.0 IU/L (C) 3.0–15.0 IU/L (D) 0.1–14.0 IU/L

Description : The normal GPT activity ranges from (A) 60.0–250.0 IU/L (B) 4.0–17.0 IU/L (C) 3.0–15.0 IU/L (D) 0.1–14.0 IU/L

Last Answer : Answer : C

What is the pH of distilled water? (A) 0 (B) 1 (C) 7 (D) 14

Description : What is the pH of distilled water? (A) 0 (B) 1 (C) 7 (D) 14

Last Answer : (C) 7

(4) water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Explanation: Water is not effective in extinguishing a fire caused by petrol because water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn. The specific gravity (or relative density) of gasoline ranges from 0.71-0.77 kg/l (719.7 kg/m3) while the specific gravity of water is 1000 kg/m3 and that is why gasoline or petrol floats on the upper surface of the water. Water cannot generally be used to extinguish a gasoline fire, unless used in a fine mist.

Description : (4) water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Explanation: Water is not effective in extinguishing a fire caused by petrol because water and ... . Water cannot generally be used to extinguish a gasoline fire, unless used in a fine mist.

Last Answer : "All the four quantum numbers of two electrons in an atom are not the same." It is the law of (1) Hund’s (2) Exclusion Principle of Pauli (3) Uncertainty Principle of Giesenberg (4) Avogadro’s law

Scale formation in boiler is controlled by (A) Preheating of feed water (B) Reduction in hardness, silica & alumina in feed water (C) Keeping the pH value of feed water just below 7 (D) Eliminating H2S in feed water

Description : Scale formation in boiler is controlled by (A) Preheating of feed water (B) Reduction in hardness, silica & alumina in feed water (C) Keeping the pH value of feed water just below 7 (D) Eliminating H2S in feed water

Last Answer : (B) Reduction in hardness, silica & alumina in feed water

How is the acidic , basic character of acids and bases varies with respect to neutral water . Show these variations on the PH scale.

Description : How is the acidic , basic character of acids and bases varies with respect to neutral water . Show these variations on the PH scale.

Last Answer : Ans: The PH of neutral water is 7 ,As the PH of solution deceases from 7 the acid characteristic of the solution increase so the acids having values 1 and 2 are strong acids and when the ... 7 the basic characteristic of the solution increase so the acids having values 11and 12 are strong bases.

For maximum alkalinity of water, pH value should be (A) Zero (B) Less than 7 (C) More than 7 (D) 14

Description : For maximum alkalinity of water, pH value should be  (A) Zero  (B) Less than 7  (C) More than 7  (D) 14

Last Answer : (D) 14

Pick up the correct statement from the following: (A) The pH value of neutral water is 7 (B) The maximum acidity is obtained when pH value is zero (C) The maximum alkalinity is obtained when pH value is 14 (D) All the above

Description : Pick up the correct statement from the following:  (A) The pH value of neutral water is 7  (B) The maximum acidity is obtained when pH value is zero . (C) The maximum alkalinity is obtained when pH value is 14  (D) All the above

Last Answer : (D) All the above

The pH value of potable water should be between (A) 1 to 1.5 (B) 6.5 to 8 (C) 13 to 14 (D) 4 to 5

Description : The pH value of potable water should be between (A) 1 to 1.5 (B) 6.5 to 8 (C) 13 to 14 (D) 4 to 5

Last Answer : (B) 6.5 to 8

pH of biogas is between — a. 6.5 to 8 b. 8 to 10 c. 3 to 4 d. 12 to 14

Description : pH of biogas is between — a. 6.5 to 8 b. 8 to 10 c. 3 to 4 d. 12 to 14

Last Answer : a. 6.5 to 8

The C : N ratio of arable soil commonly ranges from : (A) 6 : 1 to 7: 1 (B) 18: 1 to 19: 1 (C) 8 : 1 to 15:1 (D) 3 : 1 to 4: 1

Description : The C : N ratio of arable soil commonly ranges from : (A) 6 : 1 to 7: 1 (B) 18: 1 to 19: 1 (C) 8 : 1 to 15:1 (D) 3 : 1 to 4: 1

Last Answer : (C) 8 : 1 to 15:1

Current employed in resistance welding ranges from __________ kVA/cm2. (A) 1.2 to 2.5 (B) 4.5 to 6.2 (C) 7.5 to 8.5 (D) 10.5 to 15.5

Description : Current employed in resistance welding ranges from __________ kVA/cm2. (A) 1.2 to 2.5 (B) 4.5 to 6.2 (C) 7.5 to 8.5 (D) 10.5 to 15.5

Last Answer : Option B

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.

The pH of human blood is between – (1) 6.5-7 (2) 7.5-8 (3) 8-9 (4) 4.5-5

Description : The pH of human blood is between – (1) 6.5-7 (2) 7.5-8 (3) 8-9 (4) 4.5-5

Last Answer : (2) 7.5-8 Explanation: Blood is a specialized bodily fluid in animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells. ... has a pH below 7.5 is too acidic, whereas blood pH above 7.5 is too alkaline.

The pH of human blood is between : (1) 6.5-7 (2) 7.5-8 (3) 8-9 (4) 4.5-5

Description : The pH of human blood is between : (1) 6.5-7 (2) 7.5-8 (3) 8-9 (4) 4.5-5

Last Answer : 7.5-8

The normal serum alkaline phosphatase activity ranges from (A) 1.0–5.0 KA units/100 ml (B) 5.0–13.0 KA units/100 ml (C) 0.8–2.3 KA units/100 ml (D) 13.0–21.0 KA units/100 ml

Description : The normal serum alkaline phosphatase activity ranges from (A) 1.0–5.0 KA units/100 ml (B) 5.0–13.0 KA units/100 ml (C) 0.8–2.3 KA units/100 ml (D) 13.0–21.0 KA units/100 ml

Last Answer : Answer : B

The normal serum acid phosphatase activity ranges from (A) 5.0–13.0 KA units/100 ml (B) 1.0–5.0 KA units/100 ml (C) 13.0–18.0 KA units/100 ml (D) 0.2–0.8 KA units/100 ml

Description : The normal serum acid phosphatase activity ranges from (A) 5.0–13.0 KA units/100 ml (B) 1.0–5.0 KA units/100 ml (C) 13.0–18.0 KA units/100 ml (D) 0.2–0.8 KA units/100 ml

Last Answer : Answer : B

The value of ‘L/mG’ ratio for economical absorption operation ranges from (A) 0.5 to 0.8 (B) 0.8 to 1.2 (C) 1.25 to 2.0 (D) 2.5 to 3.5

Description : The value of ‘L/mG’ ratio for economical absorption operation ranges from (A) 0.5 to 0.8 (B) 0.8 to 1.2 (C) 1.25 to 2.0 (D) 2.5 to 3.5

Last Answer : (C) 1.25 to 2.0

The value of Steric factor 'P' in the equation k = PZe E/RT usually ranges from (A) 1.0 to 10 -8 (B) 1.1 to 10 2 (C) 0.1 to 0.9 (D) None of these

Description : The value of Steric factor 'P' in the equation k = PZe E/RT usually ranges from (A) 1.0 to 10 -8 (B) 1.1 to 10 2 (C) 0.1 to 0.9 (D) None of these

Last Answer : (A) 1.0 to 10 -8

Pick up the correct statement from the following: (A) Detention period for plain sedimentation tanks ranges between 4 to 8 hours (B) Detention period for sedimentation tanks, using coagulants usually ranges between 2 to 4 hours(C) The horizontally flow velocity in sedimentation tanks, is generally limited to 0.3 m/minute (D) All the above

Description : Pick up the correct statement from the following:  (A) Detention period for plain sedimentation tanks ranges between 4 to 8 hours  (B) Detention period for sedimentation tanks, using coagulants usually ... in sedimentation tanks, is generally limited to 0.3 m/minute  (D) All the above

Last Answer : (D) All the above

Percentage of carbon in steel ranges from – (1) 0.1 to 1.5 (2) 1.5 to 3.0 (3) 3.0 to 4.0 (4) 4.0 to 6.0

Description : Percentage of carbon in steel ranges from – (1) 0.1 to 1.5 (2) 1.5 to 3.0 (3) 3.0 to 4.0 (4) 4.0 to 6.0

Last Answer : (1) 0.1 to 1.5 Explanation: Steel is an alloy made by combining iron and other elements, the most common of these being carbon. When carbon is used, its content in the steel is ... weight, depending on the grade. Other alloying elements sometimes used are manganese, chromium, vanadium and tungsten.

Percentage of carbon in steel ranges from (1) 0.1 to 1.5 (2) 1.5 to 3.0 (3) 3.0 to 4.0 (4) 4.0 to 6.0

Description : Percentage of carbon in steel ranges from (1) 0.1 to 1.5 (2) 1.5 to 3.0 (3) 3.0 to 4.0 (4) 4.0 to 6.0

Last Answer : 0.1 to 1.5

The pH optima for lactase is (A) 1.0-2.0 (B) 5.4–6.0 (C) 5.0–7.0 (D) 5.8–6.2

Description : The pH optima for lactase is (A) 1.0-2.0 (B) 5.4–6.0 (C) 5.0–7.0 (D) 5.8–6.2

Last Answer : Answer : B

The pH optima for sucrase is (A) 5.0–7.0 (B) 5.8–6.2 (C) 5.4–6.0 (D) 8.6

Description : The pH optima for sucrase is (A) 5.0–7.0 (B) 5.8–6.2 (C) 5.4–6.0 (D) 8.6

Last Answer : Answer : A

The pH optima for pancreatic analyse is (A) 4.0 (B) 7.1 (C) 7.9 (D) 8.6

Description : The pH optima for pancreatic analyse is (A) 4.0 (B) 7.1 (C) 7.9 (D) 8.6

Last Answer : Answer : D

The pH optima for salivary analyse is (A) 6.6–6.8 (B) 2.0–7.5 (C) 7.9 (D) 8.6

Description : The pH optima for salivary analyse is (A) 6.6–6.8 (B) 2.0–7.5 (C) 7.9 (D) 8.6

Last Answer : Answer : A

The average pH of Urine is (A) 7.0 (B) 6.0 (C) 8.0 (D) 0.0

Description : The average pH of Urine is (A) 7.0 (B) 6.0 (C) 8.0 (D) 0.0

Last Answer : B

Citrus can tolerate a salinity level a. pH 9.0 b. pH 8.5 c. pH 7.5 d. pH 4.5

Description : Citrus can tolerate a salinity level a. pH 9.0 b. pH 8.5 c. pH 7.5 d. pH 4.5

Last Answer : pH 8.5

Which pH range is not suitable to grow the crop (a) Oats — 5.0 – 7.5 pH (b) Cotton — 6.0—7.5 pH (c) Bean ——6.0 — 8.0 pH(d) Potato —- 4.5-6.5 pH

Description : Which pH range is not suitable to grow the crop (a) Oats — 5.0 – 7.5 pH (b) Cotton — 6.0—7.5 pH (c) Bean ——6.0 — 8.0 pH(d) Potato —- 4.5-6.5 pH

Last Answer : (d) Potato —- 4.5-6.5 pH

The range of pH of human body is (a) 7.0-8.0 (b) 7.0- 7.8 (c) 7.2-8.2 (d) None

Description : The range of pH of human body is (a) 7.0-8.0 (b) 7.0- 7.8 (c) 7.2-8.2 (d) None

Last Answer : (b) 7.0-7.8

The average pH of Urine is (A) 7.0 (B) 6.0 (C) 8.0 (D) 0.0

Description : The average pH of Urine is (A) 7.0 (B) 6.0 (C) 8.0 (D) 0.0

Last Answer : (B) 6.0

What is the pH of an aqueous solution of 0.1 molar HCl? w) 7 x) 13 y) 1 z) 3

Description : What is the pH of an aqueous solution of 0.1 molar HCl? w) 7 x) 13 y) 1 z) 3

Last Answer : ANSWER: Y -- 1

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 is freshwater on the pH scale?

Description : What is freshwater on the pH scale?

Last Answer : What is the answer ?

Where is washing soda on the pH scale?

Description : Where is washing soda on the pH scale?

Last Answer : Washing soda form a basic solution.

The pH scale was introduced by?

Description : The pH scale was introduced by?

Last Answer : Sorrenson.

pH scale was discovered by?

Description : pH scale was discovered by?

Last Answer : Soren Sorensen

Turbidity of water is expressed (A) In ppm (B) In numbers in an arbitrary scale (C) By pH value (D) By colour code

Description : Turbidity of water is expressed  (A) In ppm  (B) In numbers in an arbitrary scale  (C) By pH value  (D) By colour code 

Last Answer : (A) In ppm

What is PH Scale?

Description : What is PH Scale?

Last Answer : A scale used to measures the acidic or basic or alkaline solution is known as PH scale.

The pH scale relates the measure of _______ of a chemical substance. a. ionization b. denaturation c. acidity d. buffering

Description : The pH scale relates the measure of _______ of a chemical substance. a. ionization b. denaturation c. acidity d. buffering

Last Answer : c. acidity

Define pH of solution. What is scale for it.

Description : Define pH of solution. What is scale for it.

Last Answer : pH of solution: It is defined as the negative logarithm of hydrogen ion concentration. pH= - log[H+ ] Scale: It is a logarithmic scale ranging from 0 to 14 used to measure the concentration of hydrogen ... acidic solution has a low pH value (0-7) and basic solution has a high pH value(7-14).

Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to (A) 14.14 m (B) 28.28 m (C) 200 m (D) None of these

Description : Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of ... should be limited to (A) 14.14 m (B) 28.28 m (C) 200 m (D) None of these

Last Answer : (B) 28.28 m

The PH value of a sample of multi-pledistilled water is (a) zero (b) 14 (c) very near to zero (d) very near to seven

Description : The PH value of a sample of multi-pledistilled water is (a) zero (b) 14 (c) very near to zero (d) very near to seven

Last Answer : Ans:(d)

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

'Lang factor' is defined as the ratio of the capital investment to the delivered cost of major equipments. The value of 'Lang factor' for fixed capital investment, for a solid-fluid processing chemical plant ranges from (A) 1.2 to 1.4 (B) 2.5 to 2.7 (C) 4.2 to 4.4 (D) 6.2 to 6.4

Description : 'Lang factor' is defined as the ratio of the capital investment to the delivered cost of major equipments. The value of 'Lang factor' for fixed capital investment, for a solid-fluid processing chemical plant ranges from (A) 1.2 to 1.4 (B) 2.5 to 2.7 (C) 4.2 to 4.4 (D) 6.2 to 6.4

Last Answer : C) 4.2 to 4.4