The empirical formula for chlorophyll-a is: (a) C35 H72 O5N4 Mg (b) C65 H70 O6N4 Mg (c) C55 H72 O5N4 Mg (d) C45 H70 O6N4 Mg

The empirical formula for chlorophyll-a is: (a) C35 H72 O5N4 Mg (b) C65 H70 O6N4 Mg (c) C55 H72 O5N4 Mg (d) C45 H70 O6N4 Mg
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Ans. ((c))
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The emprical formula for chlorophyII-b is: (a) C54 H70 O6 N4 Mg (b) C55 H70 O6 N4 Mg (c) C55 H22 O5 N4 Mg (d) C45 H72 O5 N4 Mg

Description : The emprical formula for chlorophyII-b is: (a) C54 H70 O6 N4 Mg (b) C55 H70 O6 N4 Mg (c) C55 H22 O5 N4 Mg (d) C45 H72 O5 N4 Mg

Last Answer : Ans. (b)

The factor influencing process of flowerings is: (a) Amount of chlorophyll (b) Soil water (c) Soil pH (d) Photoperiod

Description : The factor influencing process of flowerings is: (a) Amount of chlorophyll (b) Soil water (c) Soil pH (d) Photoperiod

Last Answer : Ans. ((d))

Moll’s experiment explains that (a) Carbon dioxide is essential for photosynthesis (b) Chlorophyll and water are necessary for photosynthesis (c) Light and water are essential for photosynthesis (d) All of the above are correct

Description : Moll’s experiment explains that (a) Carbon dioxide is essential for photosynthesis (b) Chlorophyll and water are necessary for photosynthesis (c) Light and water are essential for photosynthesis (d) All of the above are correct

Last Answer : Ans. ((a))

Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.

Description : Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.

Last Answer : a) Reduction in ozone

The newspaper contains one of the following toxic material a) Mg b) Cd c) Pb d) Hg.

Description : The newspaper contains one of the following toxic material a) Mg b) Cd c) Pb d) Hg. 

Last Answer : b) Cd 

.The land side of a mould board plough is made of: A. Malleable iron B. Forged steel C. C45 steel D. Soft Centre steel

Description : .The land side of a mould board plough is made of: A. Malleable iron B. Forged steel C. C45 steel D. Soft Centre steel

Last Answer : D. Soft Centre steel

The landside of a mould board plough is made of: a) Malleable iron b) Forged steel c) C45 steel d) Soft centre steel

Description : The landside of a mould board plough is made of: a) Malleable iron b) Forged steel c) C45 steel d) Soft centre steel

Last Answer : d) Soft centre steel

Determine the empirical formula of an oxide of iron that has 69.9% iron & 30.1% dioxygen by mass. -General Knowledge

Description : Determine the empirical formula of an oxide of iron that has 69.9% iron & 30.1% dioxygen by mass. -General Knowledge

Last Answer : Given: % of iron by mass = 69.9 % % of oxygen by mass = 30.1 % Relative moles of iron in iron oxide: = Percentage of iron by mass/Atomic mass of iron = 69.9/55.85 = 1.25 Relative moles of oxygen in iron ... to oxygen: = 1.25: 1.88 = 1:1.5 = 2:3 ∴ The empirical formula of the iron oxide is Fe2O3.

The empirical formula of an acid is `CH_(2)O_(2)`, the probable molecular formula of acid may be :-

Description : The empirical formula of an acid is `CH_(2)O_(2)`, the probable molecular formula of acid may be :-

Last Answer : The empirical formula of an acid is `CH_(2)O_(2)`, the probable molecular formula of acid may be :- A. `CH_(2)O` ... )H_(4)O_(2)` D. `C_(3)H_(6)O_(4)`

The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero and 2.84 BM respectively. The second complex i

Description : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero and 2.84 BM respectively. The second complex i

Last Answer : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2 ... . D. It produces three-fold freezing point depression.

The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero and 2.84 BM respectively. The second complex i

Description : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero and 2.84 BM respectively. The second complex i

Last Answer : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero and ... (H_(2)O)_(2)](NO_(3))_(2)`, octahedral

The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero and 2.84 BM respectively. The second complex i

Description : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero and 2.84 BM respectively. The second complex i

Last Answer : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero ... two B. zero, zero C. two, zero D. two ,two

What is the empirical formula for hydrogen peroxide?

Description : What is the empirical formula for hydrogen peroxide?

Last Answer : HO

What is the empirical formula for a molecule containing 46.8 Si and 53 O?

Description : What is the empirical formula for a molecule containing 46.8 Si and 53 O?

Last Answer : Since the ratio of atomic masses of silicon and oxygen is1:1.988, the empirical formula is SiO2.

What is the empirical formula for hydrogen peroxide?

Description : What is the empirical formula for hydrogen peroxide?

Last Answer : HO

What is the empirical formula for a molecule containing 46.8 Si and 53 O?

Description : What is the empirical formula for a molecule containing 46.8 Si and 53 O?

Last Answer : Since the ratio of atomic masses of silicon and oxygen is1:1.988, the empirical formula is SiO2.

What is the molecular formula of a compound with an empirical formula of C2OH4 and a molar mass of 88 grams per mole?

Description : What is the molecular formula of a compound with an empirical formula of C2OH4 and a molar mass of 88 grams per mole?

Last Answer : This compound may be dioxane - C4H8O2.

Is definitely not an empirical formula C12H16O3 C6H12O4 C12H22O11 C3H8O2?

Description : Is definitely not an empirical formula C12H16O3 C6H12O4 C12H22O11 C3H8O2?

Last Answer : All are molecular formulas.

so3 is an empirical formula for which of the following A. so4B.s2o6C.s4o2D.s2o3?

Description : so3 is an empirical formula for which of the following A. so4B.s2o6C.s4o2D.s2o3?

Last Answer : B. s2o6

Which best describes an empirical formula?

Description : Which best describes an empirical formula?

Last Answer : Apex

What is the total number of ions in the empirical formula NaOH?

Description : What is the total number of ions in the empirical formula NaOH?

Last Answer : Sodium Hydroxide is an ionic compound formed by two ions.

Empirical formula?

Description : Empirical formula?

Last Answer : A 0.1845g sample of molybdenum metal is covered with hydrochloric acid and heated until the reaction is complete and excess chlorine is driven off. When weighed, the final product of the metal and chlorine had a mass of 0.5936g. What is the empirical formula if the compound?

An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the distance between adjacent carbon atoms is 1.39Å (intermediate between single and double bond lengths). The evidence suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Last Answer : Benzene

An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the distance between adjacent carbon atoms is 1.39Å (intermediate between single and double bond lengths). The evidence suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane

Last Answer : Benzene

If P is population of a city in thousands and Q is fire demand in litres per minute, for proper estimate of water, the Empirical formula Q = 1135 [(P/5) + 10] is suggested by (A) National Board of fire under-writers (B) Freeman (C) Kuichling (D) None of these

Description : If P is population of a city in thousands and Q is fire demand in litres per minute, for proper  estimate of water, the Empirical formula Q = 1135 [(P/5) + 10] is suggested by  (A) National Board of fire under-writers  (B) Freeman  (C) Kuichling  (D) None of these 

Last Answer : (B) Freeman 

The fire demand for ascertaining the empirical formula 1136.5 [(P/10) + 10] known as (A) Kuichling's formula (B) Buston's formula (C) Freeman formula (D) Under Writers formula

Description : The fire demand for ascertaining the empirical formula 1136.5 [(P/10) + 10] known as  (A) Kuichling's formula  (B) Buston's formula  (C) Freeman formula  (D) Under Writers formula 

Last Answer : (C) Freeman formula

For calculation of economical diameter D of a pipe in metres for a discharge Q to be pumped in cumecs, Lea suggested the empirical formula (A) D = 0.22 Q (B) D = 1.22 Q (C) D = 2.22 Q (D) D = 3.22 Q

Description : For calculation of economical diameter D of a pipe in metres for a discharge Q to be pumped in  cumecs, Lea suggested the empirical formula  (A) D = 0.22 Q (B) D = 1.22 Q (C) D = 2.22 Q (D) D = 3.22 Q

Last Answer : (B) D = 1.22 Q

For calculating the allowable stress of long columns. The empirical formula 0 y/n) (1 - a l/r), is known as (A) Straight line formula (B) Parabolic formula (C) Perry's formula (D) Rankine's formula

Description : For calculating the allowable stress of long columns. The empirical formula 0 y/n) (1 - a l/r), is  known as  (A) Straight line formula  (B) Parabolic formula  (C) Perry's formula  (D) Rankine's formula 

Last Answer : (A) Straight line formula 

For calculating the permissible stress 0 y /[(1 + a(l/r)²]is the empirical formula, known as (A) Straight line formula (B) Parabolic formula (C) Perry's formula (D) Rankine's formula

Description : For calculating the permissible stress 0 y /[(1 + a(l/r)²]is the empirical formula, known as  (A) Straight line formula  (B) Parabolic formula  (C) Perry's formula  (D) Rankine's formula 

Last Answer : (D) Rankine's formula 

For calculating the allowable stress of long columns 0 y/n [1 - a (1/r)²]is the empirical formula, known as (A) Straight line formula (B) Parabolic formula (C) Perry's formula (D) Rankine's formula

Description : For calculating the allowable stress of long columns 0 y/n [1 - a (1/r)²]is the empirical formula,  known as  (A) Straight line formula  (B) Parabolic formula  (C) Perry's formula  (D) Rankine's formula 

Last Answer : (B) Parabolic formula 

Design of flexible pavements is based on (A) Mathematical analysis (B) Empirical formulae (C) A compromise of pure theory and pure empirical formula (D) None of these

Description : Design of flexible pavements is based on (A) Mathematical analysis (B) Empirical formulae (C) A compromise of pure theory and pure empirical formula (D) None of these

Last Answer : Answer: Option C

As per Stevenson's empirical formula, the approximate value of the height of the wave in metres is given by (A) 0.34 VF (B) 0.5 VF (C) 1.5 VF (D) 3.4 VF

Description : As per Stevenson's empirical formula, the approximate value of the height of the wave in metres is given by (A) 0.34 VF (B) 0.5 VF (C) 1.5 VF (D) 3.4 VF

Last Answer : (A) 0.34 VF

What Is The Empirical Formula Used To Give The Number Of Bolts In Flange Coupling?

Description : What Is The Empirical Formula Used To Give The Number Of Bolts In Flange Coupling?

Last Answer : n = 0.2d + 3

If two compounds have the same empirical formula but different molecular formula, they must have [MP PMT 1986] (A) Different percentage composition (B) Different molecular weights (C) Same viscosity (D) Same vapour density

Description : If two compounds have the same empirical formula but different molecular formula, they must have [MP PMT 1986] (A) Different percentage composition (B) Different molecular weights (C) Same viscosity (D) Same vapour density

Last Answer : (B) Different molecular weights

Give the EMPIRICAL formula for the organic compound cyclopentene.

Description : Give the EMPIRICAL formula for the organic compound cyclopentene.

Last Answer : ANSWER: C5H8 

What is the empirical formula for fructose?

Description : What is the empirical formula for fructose?  

Last Answer : ANSWER: CH2O

What is the EMPIRICAL FORMULA for Benzene?

Description : What is the EMPIRICAL FORMULA for Benzene? 

Last Answer : ANSWER: CH

Which of the following is the EMPIRICAL formula of dodecane? w) C5H11 x) C6H13 y) C10H22 z) C12H26

Description : Which of the following is the EMPIRICAL formula of dodecane? w) C5H11 x) C6H13 y) C10H22 z) C12H26

Last Answer : ANSWER: X -- C6H13

What is the EMPIRICAL formula for glucose?

Description : What is the EMPIRICAL formula for glucose? 

Last Answer : ANSWER: CH2O (read: C - H - 2 - O) 

Give the empirical formula for the organic compound naphthalene?

Description : Give the empirical formula for the organic compound naphthalene?

Last Answer : ANSWER: C10H8

Which of the following is present In Chlorophyll molecule? (1) Win (2) Mg (3) Fe (4) K

Description : Which of the following is present In Chlorophyll molecule? (1) Win (2) Mg (3) Fe (4) K

Last Answer : (2) Mg Explanation: Chlorophyll is the green pigment found in most plants, responsible for light absorption to provide energy by photosynthesis. Magnesium is the sole metallic constituent of the chlorophyll.

Which of the following metals are present in hemoglobin and chlorophyll, respectively? (1) Fe and Mg (2) Fe and Zn (3) Mg and Zn (4) Zn and Mg

Description : Which of the following metals are present in hemoglobin and chlorophyll, respectively? (1) Fe and Mg (2) Fe and Zn (3) Mg and Zn (4) Zn and Mg

Last Answer : (1) Fe and Mg Explanation: Fe and Mg metals are present in hemoglobin and Chlorophyll respectively.

The core metal of chlorophyll is (a) Ni (b) Cu (c) Fe (d) Mg.

Description : The core metal of chlorophyll is (a) Ni (b) Cu (c) Fe (d) Mg.

Last Answer : d) Mg.

Mg is a component of (a) chlorophyll (b) cytochrome (c) haemoglobin (d) haemocyanin.

Description : Mg is a component of (a) chlorophyll (b) cytochrome (c) haemoglobin (d) haemocyanin.

Last Answer : (a) chlorophyll

Which of the following is present in Chlorophyll molecule ? (1) Mn (2) Mg (3) Fe (4) K

Description : Which of the following is present in Chlorophyll molecule ? (1) Mn (2) Mg (3) Fe (4) K

Last Answer : Mg

What is the formula for Chlorophyll?

Description : What is the formula for Chlorophyll?

Last Answer : C55 H72 O5 N5 Mg .

What is the formula for Chlorophyll?

Description : What is the formula for Chlorophyll?

Last Answer : C55 H72 O5 N5 Mg .

The formula to calculate maximum urea clearance is U V× B , where U denotes (A) Concentration of urea in urine in gm/24hr (B) Concentration of urea in urine in mg/100 ml (C) Concentration of urea in blood in mg/100 ml (D) Volume of urine in ml/mt

Description : The formula to calculate maximum urea clearance is U V× B , where U denotes (A) Concentration of urea in urine in gm/24hr (B) Concentration of urea in urine in mg/100 ml (C) Concentration of urea in blood in mg/100 ml (D) Volume of urine in ml/mt

Last Answer : Answer : B

Calculate the power output in horsepower of an 80-kg man that climbs a flight of stairs 3.8 m high in 4.0 s.  a) 744.8 hp  b) 0.998 hp  c) 746 hp  d) 1.998 hp Formula: Power = Fd/t = mgh/t F = W = mg d = h

Description : Calculate the power output in horsepower of an 80-kg man that climbs a flight of stairs 3.8 m high in 4.0 s.  a) 744.8 hp  b) 0.998 hp  c) 746 hp  d) 1.998 hp Formula: Power = Fd/t = mgh/t F = W = mg d = h

Last Answer : 0.998 hp

A mass of 5kg is 100m above a given datum where local g = 9.75 m/s2 . Find the gravitational force in newtons. (Formula: Fg= mg/k )  a. 48.75 N  b. 50 N  c. 45 N  d. None of the above

Description : A mass of 5kg is 100m above a given datum where local g = 9.75 m/s2 . Find the gravitational force in newtons. (Formula: Fg= mg/k )  a. 48.75 N  b. 50 N  c. 45 N  d. None of the above

Last Answer : 48.75 N