Boron can be obtained by various methods but not by :

1 Answer

Answer :

Boron can be obtained by various methods but not by : A. Reduction of `B_(2)O_(3)` with Mg B. ... with `H_(2)` D. electrolysis of fused `BCl_(3)`

Related questions

Description : Which one of the following element is mobile in plants but immobile in soil ? (A) Sulphur (B) Zinc (C) Boron (D) Phosphorus

Last Answer : (D) Phosphorus

Description : Which of the following elements is not essential element of plants but proves to be beneficial for some plants? a) Boron b) Sodium c) Iodine d) Copper

Last Answer : b) Sodium

Description : Which of the following elements is not essential element of plants but proves to be beneficial for some plants?a) Boron b) Sodium c) Iodine d) Copper

Last Answer : b) Sodium

Description : Which of the following methods of depreciation calculations results in book values greater than those obtained with straight line method? (A) Multiple straight line method (B) Sinking fund method (C) Declining balance method (D) Sum of the years digit method

Last Answer : (B) Sinking fund method

Description : Human insulins are obtained by the following sources/methods except: A. Cadaver pancreas B. Proinsulin recombinant bacterial C. Precursor yeast recombinant D. Enzyme modification of pork insulin

Last Answer : . Cadaver pancreas

Description : What are the various methods of soil conservation? -Geography

Last Answer : Many different Methods of soil conservation: 1. Contour Plowing - Originating in ancient Phoenicia, Contour Plowing involves plowing grooves into the desired farmland, then planting the crop ... of nitrogen fertilizer and fungicides can increase yields and protect crops from drought and flooding.

Description : What are the various methods of soil conservation? -SST 10th

Last Answer : Methods of soil conservation: 1. Contour ploughing: Ploughing along the contour lines can check the flow of water down the slopes. It is called contour ploughing. It can be practised on ... contributed significantly to the stabilisation of sand dunes and in stabilising the desert in western India.

Description : Give various methods of rainwater harvesting since ancient times. -SST 10th

Last Answer : . Guls or Kuls: In hilly and mountainous regions, people built diversion channels called Kuls or Guls in the Western Himalayas. A Kul or Gul leads to a circular village tank, from ... of Rajasthan, almost all the houses traditionally had underground tanks or tankas for storing drinking water.

Description : What were the various methods Travis used in his attempts to keep old yeller from wandering off during at night?

Last Answer : Feel Free to Answer

Description : The purity of an isolated protein can be tested by employing various methods. (A) Solubility curve (B) Molecular weight (C) Ultra Centrifugation (D) Immuno Ractivity (E) All of these

Last Answer : Answer : C

Description : What are the various methods of performing a calculation in a report ?

Last Answer : 1. Perform the calculation in the SQL statements itself. 2. Use a calculated / summary column in the data model.

Description : Name the various methods for predetermining the voltage regulation of 3-phase Alternator.

Last Answer : The following are the three methods which are used to predetermine the voltage regulation of smooth cylindrical type Alternators · Synchronous impedance / EMF method · Ampere-turn / MMF method · Potier / ZPF method

Description : List out the various methods available for performing for analog multiplier.

Last Answer : • Logarithmic summing technique • Pulse height /width modulation technique • Variable transconductance technique • Multiplication using gilbert cell • Multiplication technique using transconductance technique

Description : Describe Briefly The Various Methods Of Concrete Curing?

Last Answer : Answer : Curing is the process of maintaining the moisture and temperature conditions for freshly deployed concrete. This is done for small duration of time to allow the hardening of concrete. The methods that ... can be applied on curing surface. This keeps the surface wet for a very long time.

Description : Water harvesting is an age-old concept in India. Various methods are used in different regions of India. Khadins water harvesting method is used in A. Rajasthan B. Maharashtra C. Bihar D. Uttar Pradesh

Last Answer : A. Rajasthan

Description : Enlist various methods of levelling.

Last Answer : Methods of leveling: i. Simple levelling ii. Differential levelling iii. Longitudinal levelling iv. Cross section levelling v. Fly levelling vi. Check levelling vii. Reciprocal levelling viii. Profile levelling

Description : List various character generation methods.

Last Answer : Stroke Method Bitmap Method Starburst Method

Description : List the various gear finishing methods

Last Answer : Ans: Gear finishing methods: 1. Gear shaving 2.Geargrinding 3.Gear Honing 4. Gear lapping 5.Gear burnishing

Description : State field methods of compactions. Explain suitability of various compaction equipments. 

Last Answer : Field methods of compactions: 1. Compaction by rolling 2. Compaction by ramming 3. Compaction by tamping 4. Compaction by vibration Suitability of various compaction equipments. 1. Smooth ... both flexible and rigid pavement. It is also suitable for compacting granular soils with no fines.

Description : State the various lighting calculations methods and Describe any one of them.

Last Answer : Lighting calculation methods: 1. Lumens or Light flux method 2. Point to point or Inverse Square law method 3. Watts per Square meter method i) Lumens or Light ... is taken according to the illumination desired on an average value considering overall efficiency of the lighting system.

Description : List various transistor biasing methods.

Last Answer : Types of biasing methods: i. Base bias (or fixed bias) ii. Base bias with emitter feedback. iii. Base bias with collector feedback iv. Voltage divider bias (or self bias) v. Emitter bias. 

Description : Point out the wrong statement. a) Amazon Machine Instances are sized at various levels and rented on a computing/hour basis b) The metrics obtained by CloudWatch may be used to enable a feature called Auto Scaling c) A number of tools are used to support EC2 services d) None of the mentioned

Last Answer : None of the mentioned

Description : Accuracy of elevation of various points obtained from contour map is limited to (A) ½ of the contour interval (B) ¼ th of the contour interval (C) rd of the contour interval (D) th of the contour interval

Last Answer : (A) ½ of the contour interval

Description : A compact estimate about the amount of materials handling between various work stations is obtained from the (A) Gantt chart (B) Bin chart (C) String diagram (D) Travel chart

Last Answer : (D) Travel chart

Description : Three resistors of resistance R are connected in various ways, which of the following cannot be obtained? a. 3R ohm b. 2R/4 ohm c. R/3 ohm d. 2R/3 ohm

Last Answer : b. 2R/4 ohm

Description : Does anyone here know what the lewis dot structure is for boron sulfide?

Last Answer : Try looking up “Lewis Dot Structure” on a search engine and see if that “rings a bell”.

Description : What are the deficiency symptoms of Boron in plants? -Biology

Last Answer : answer:

Description : What is the sign of boron ?

Last Answer : B boron signal

Description : What is the color of boron ?

Last Answer : Boron color is dark brown.

Description : What is the borosity of boron ?

Last Answer : Boron valence 3 .

Description : What is the boiling point of boron ?

Last Answer : Boron's boiling point is 3660 degrees Celsius.

Description : What is the melting point of boron ?

Last Answer : Boron has a melting point of 2300 degrees Celsius.

Description : What is the relative atomic number of boron ?

Last Answer : The relative atomic number of boron is 11 .

Description : What is the atomic number of boron ?

Last Answer : The atomic number of boron is 5 .

Description : What language did Boron come from ?

Last Answer : Boron comes from Arabic language.

Description : What is the symbol of Boron ?

Last Answer : Boron's symbol B

Description : What is the atomic number of boron ?

Last Answer : Boron atomic number 5 .

Last Answer : Atomic Numbers 5.

Description : The hybridization states of boron and nitrogen in borazole respectively

Last Answer : The hybridization states of boron and nitrogen in borazole respectively A. sp, sp B. sp, `sp^(2)` C. `sp^(2),sp^(2)` D. `sp^(2),sp^(3)`

Description : Does boron form covalent compound or ionic?

Last Answer : Does boron form covalent compound or ionic?

Description : What are 5 common uses for boron?

Last Answer : Need answer

Description : How does boron bond with iodine?

Last Answer : The bond is polar covalent.

Description : Is boron a cation or a anion?

Last Answer : Boron is an element and is neither an anion or cation. Ifionized it would tend to from B3+ and would be thus a cation.

Description : Why boron compounds behave as Lewis acids?

Last Answer : What is the answer ?

Description : Is boron polar or non polar?

Last Answer : It's non polar covalent

Description : What is the mass number of a boron atom with 4 neutrons?

Last Answer : Need answer

Description : What is the sub-atomic particles in the nucleolus of a boron atom?

Last Answer : Need answer

Description : Is boron polar or non polar?

Last Answer : It's non polar covalent

Description : What bond does boron and oxygen form?

Last Answer : form a triple bond prone to cyclotrimerization to boroxines.