Description : Which of the following is used in pencils? A.Graphite B.Silicon C.Charcoal D.Phosphorous -Science
Last Answer : answer is A. Graphite
Description : The substances that can be used as explosives are 1. phosphorous trichloride 2. mercuric oxide 3. trinitrotoluene 4. nitroglycerine The correct answers are: (a) 1 and 2 (b) 2 and 4 (c) 2 and 3 (d) 3 and 4
Last Answer : Ans:(d)
Description : The molecular formula of phosphorous is?
Last Answer : P4
Description : Write the name of a liquid in which phosphorous dissolves:?
Last Answer : Carbondisulphide
Description : The phosphorous used as rat poison ?
Last Answer : Zinc Phosphide
Description : The product obtained after the heating of White Phosphorous at a high temperature is?
Last Answer : Black Phosphorous
Description : The phosphorous which is illuminated in darkness is?
Last Answer : White Phosphorous
Description : The isotope of Phosphorous used for the treatment of blood cancer is?
Last Answer : Phosphorous-32
Description : Red phosphorous is used for making ?
Last Answer : Safety matches
Description : White phosphorous burns in atmosphere at?
Last Answer : 30°C
Description : The form of Phosphorous which emits green light on the exposure to atmosphere ?
Last Answer : White phosphorous
Description : White phosphorous is kept in?
Last Answer : Water
Description : Nitrogen (atomic number 7) and Phosphorous (atomic number 15) belong to group 15 of the periodic table. Which of these will be more electro negative? Why?
Last Answer : Nitrogen will be more electro negative as it decreases down the group.
Description : The process of increase in the growth of algae in water bodies due to increase of phosphorous is called
Last Answer : eutrophication.
Description : Which of the following is used in Pencils? A. Graphite (Answer) B. Silicon C. Charcoal D. Phosphorous
Last Answer : A. Graphite (Answer)
Description : Which of the following is a Non Metal that remains Liquid at room temperature? A. Phosphorous B. Bromine (Answer) C. Chlorine D. Helium
Last Answer : B. Bromine (Answer)
Description : What are the chemical signals of phosphorous acid ?
Last Answer : : Chemical signal of phosphorous acid H3PO3
Description : Phosphorous has the oxidation state of `+3` in :
Last Answer : Phosphorous has the oxidation state of `+3` in : A. Phosphorus acid B. Orthophosphoric acid C. Meta phosphoric acid D. Pyro phosphoric acid
Description : Phosphorous has the oxidation state of +1 in:
Last Answer : Phosphorous has the oxidation state of +1 in: A. Phosphorous acid `(H_(3)PO_(3))` B. Orthophosphoric acid ... phosphoric acid `(H_(4)(P_(2)O_(6))`
Description : The product obtained when propanamide is distilled with phosphorous pentoxide is `(CH_3CH_(2)CO)_(2)O`
Last Answer : The product obtained when propanamide is distilled with phosphorous pentoxide is `(CH_3CH_(2)CO)_(2)O` A. `CH_(3) ... . `(CH_(3)CH_(2)COO)_(3)PO` D.
Description : White phosphorous on reaction with `NaOH` gives `PH_(3)` and
Last Answer : White phosphorous on reaction with `NaOH` gives `PH_(3)` and A. `Na_(2)HPO_(3)` B. `NaH_(2)PO_(2)` C. `NaH_(2)PO_(3)` D. `Na_(3)PO_(4)`
Description : The product formed in the reaction of `SOCl_2` (thionyl chloride) with white phosphorous is.
Last Answer : The product formed in the reaction of `SOCl_2` (thionyl chloride) with white phosphorous is. A. `PCl_(3)` B. `SO_(2)Cl_(2)` C. `SCl_(2)` D. `POCl_(3)`
Description : Given below are some properties. How many of these can hold good for phosphorous (a) Metal (b) Non- metal (c) Metalloid (d) Exhibits allotropy (e) Cat
Last Answer : Given below are some properties. How many of these can hold good for phosphorous (a) ... electricity (h) Least dense among nitrogen family elements
Description : In case of nitrogen, `NCl_(3)` is possible but not `NCl_(5)` while in case of phosphorous, `PCl_(5)` as well as `PCl_(5)` are possible. It is due to
Last Answer : In case of nitrogen, `NCl_(3)` is possible but not `NCl_(5)` while in case of phosphorous, ... P in solid while N in gaseous state at room temperature
Description : In case of nitrogen, `NCl_(3)` is possible but not `NCl_(5)` while in case of phosphorous, `PCl_(5)` are possible. It is due to
Last Answer : In case of nitrogen, `NCl_(3)` is possible but not `NCl_(5)` while in case of phosphorous, ... In solid while N in gaseous state at room temperature.
Description : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : dry iodine reacts with ozone and formed yell
Last Answer : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : ... below 369 K. A. FTF B. TTF C. TTT D. TFF
Description : Why is phosphorous referred to as a local cycle?
Last Answer : Potatk
Description : Which element has more protons iron or phosphorous?
Last Answer : The number of protons an element has is given by its Atomic Number in the Periodic TableThe Atomic Number of Iron = 26The Atomic Number of Phosphorus = 15
Description : Renal ricket is caused by renal tubular defect (usually inherited) which interferes with reabsorption of (A) Calcium (B) Phosphorous (C) Sodium (D) Chloride
Last Answer : Answer : B
Description : A nucleotide consists of (A) A nitrogenous base like choline (B) Purine + pyrimidine base + sugar + phosphorous (C) Purine or pyrimidine base + sugar (D) Purine or pyrimidine base + phosphorous
Description : A nucleoside consists of (A) Nitrogenous base (B) Purine or pyrimidine base + sugar (C) Purine or pyrimidine base + phosphorous (D) Purine + pyrimidine base + sugar + phosphorous
Description : A high concentration of PTH in blood causes (A) Increase in plasma calcium and inorganic phosphorous (B) Decrease in plasma calcium and inorganic phosphorous (C) Increase in plasma calcium ... in plasma inorganic phosphorous (D) Decrease in plasma calcium and increase in plasma inorganic phosphorous
Last Answer : Answer : C
Description : The characteristic of hyperparathyroidism is (A) Low serum calcium (B) High serum phosphorous (C) Low serum calcium and high serum phosphorous (D) High serum calcium and low serum phosphate
Last Answer : Answer : D
Description : Calcitonin causes (A) Calcinuria and phosphaturia (B) Decrease in urinary calcium (C) Decrease in urinary phosphorous (D) Increase in blood calcium level 212 MCQs IN BIOCHEMISTRY
Last Answer : Answer : A
Description : When phosphorous level is lowered ? (A) In hyper thyroidism (B) Cirrosis of liver (C) Leukemia (D) Hypothyroidism
Description : The normal serum inorganic phosphorous level is (A) 1.5–2.5 mg/100 ml (B) 2.5–4.5 mg/100 ml (C) 4.5–6.5 mg/100 ml (D) 0.5–1.5 mg/100 ml
Description : Absorption of phosphorous from diet is favoured by (A) Moderate amount of fat (B) Acidic environment (C) High calcium content (D) High phytic acid
Description : Daily requirement of phosphorous for an infant is (A) 240–400 mg (B) 1.2 gms (C) 800 mg (D) 800–1200 mg
Description : Serum inorganic phosphorous decreases in all the following conditions except (A) Hyperparathyroidism (B) Intestinal malabsorption (C) Osteomalacia (D) Chronic renal failure
Description : Serum inorganic phosphorous rises in all the following conditions except (A) Hypoparathyroidism (B) Hypervitaminosis D (C) Chronic renal failure (D) After a carbohydrate-rich meal MINERAL METABOLISM 197
Description : The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) is decreased in (A) Rickets (B) Hypoparathyroidism (C) Hyperparathyroidism (D) Renal failure
Description : The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) in children is about (A) 30 (B) 40 (C) 50 (D) 60
Description : The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) in adults is about (A) 30 (B) 40 (C) 50 (D) 60
Description : The correct statement about serum inorganic phosphorous concentration is (A) It is higher in men than in women (B) It is higher in women than in men (C) It is higher in adults than in children (D) It is higher in children than in adults
Description : Psychotic symptoms and parkinsonism like symptoms develop due to inhalation poisoning of (A) Manganese (B) Phosphorous (C) Magnesium (D) Zinc
Description : An acquired siderosis-Bantu siderosis is due to (A) Foods cooked in iron pots (B) Diet high in phosphorous (C) Diet high in calcium (D) High fat diet