Description : The ion which activates salivary amylase activity is (A) Chloride (B) Bicarbonate (C) Sodium (D) Potassium
Last Answer : Answer : A
Description : During the nerve impulse transmission, following ion or ions may play significant roles D A. Sodium B. Potassium C. Chloride D. All of these
Last Answer : All of these
Description : What and happens when a sodium ion is attracted to a chlorine ion?
Last Answer : Need answer
Description : When a positive ion is attracted to a negative ion what’s the chemical bond called?
Last Answer : Ionic Bond
Description : When a positive ion is attracted to a negative ion what’s the chemical bond?
Description : What ion is potassium most likely to form in compound?
Last Answer : K+ So it loses one electron
Description : What kind of ion is potassium?
Last Answer : It is a cation, with valency 1.
Description : What is the formula of potassium ion in the noble gas state? (1) K⁺ (2) K²⁺ (3) K²⁻ (4) K⁻
Last Answer : (1) K⁺
Description : The following are true about rods in darkness: a. there is tonic release of neurotransmitters b. the sodium ion channels are open c. the potassium ion channels are shut d. there is a net influx of sodium ions
Last Answer : there is a net influx of sodium ions
Description : Which of the following statements is not correct? (a) An action potential in an axon does not move backward because the segment behind is in a refractory phase. (b) Depolarisation of hair cells ... d) In the knee-jerk reflex, stimulus is the stretching of muscle and response is its contraction.
Last Answer : (c) Rods are very sensitive and contribute to daylight vision.
Description : Name the ion responsible for unmasking of active sites for myosin for cross-bridge activity during muscle contraction. (a) Calcium (b) Magnesium (c) Sodium (d) Potassium
Last Answer : (a) Calcium
Description : Human urine is usually acidic because (a) potassium and sodium exchange generates acidity (b) hydrogen ions are actively secreted into the filtrate (c) the sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries (d) excreted plasma proteins are acidic.
Last Answer : (b) hydrogen ions are actively secreted into the filtrate
Description : Which of the following molecules or ions is NOT formed when K metal reacts with liquid CH3OH? Is it: w) potassium ion x) hydrogen ion y) methoxy ion z) hydrogen molecule
Last Answer : ANSWER: X -- HYDROGEN ION
Description : To balance the bicarbonate ion loss in RBC the chloride ions move into RBC, it is known as :-
Last Answer : To balance the bicarbonate ion loss in RBC the chloride ions move into RBC, it is known as :- A. Chloride ... C. Bohr effect D. Both (1) and (2)
Description : On adding `AgNO_(3)` solution to a solution of `[Pt(NH_(3))_(3)Cl_(3)]Cl`, the percentage of total chloride ion precipitated is
Last Answer : On adding `AgNO_(3)` solution to a solution of `[Pt(NH_(3))_(3)Cl_(3)]Cl`, the percentage of total ... ion precipitated is A. 100 B. 75 C. 50 D. 25
Description : How many protons and electrons are there in a chloride ion?
Last Answer : Chlorine has 17 protons and an atom of Chlorine would have 17electrons. However a Chloride Ion will have one more electron ie 18electrons and will be negatively charged.
Description : What is the Positive ion of barium chloride?
Description : Chloride shift is (A) H ions leaving the RBC in exchange of Cl- (B) Cl– leaving the RBC in exchange of bicarbonate (C) Bicarbonate ion returns to plasma and exchanged with chloride which shifts into the cell (D) Carbonic acid to the plasma
Last Answer : Answer : C
Description : Chlorine atom becomes a chloride ion by (a) Losing an electron (b) Gaining an electron (c) Sharing its electron with another element (d) Gaining a neutron
Last Answer : Ans:(b)
Description : Avermectins act against parasites by C A. Stopping the energy metabolism B. Inhibiting the Cholinesterase C. Changing the chloride ion channel activity D. None of these
Last Answer : Changing the chloride ion channel activity
Description : Compared with intracellular fluid, extracellular fluid has, a. a greater osmolarity b. a higher protein concentration c. a lower chloride ion concentration d. a lower hydrogen ion concentration
Last Answer : a lower hydrogen ion concentration
Description : Which of the following is not a correct statement concerning the FriedelCrafts acylation of benzene? (a) An alkyl group substitutes for a hydrogen. (b) The benzene ring attacks an acylium ion. (c) The acylium ion is resonance stabilized. (d) The acylium ion is often produced from an acyl chloride.
Last Answer : An alkyl group substitutes for a hydrogen
Description : What are the various types of batteries used in electric vehicles • Lithium ion batteries • Sodium nickel chloride batteries • Sodium sulphor batteries • All of the above
Last Answer : • All of the above
Description : Under similar conditions, which of the following i is the best reducing agent under similar conditions? w) fluoride ion x) chloride ion y) bromide ion z) iodide ion
Last Answer : ANSWER: Z -- IODIDE ION
Description : In a body-centered structure for cesium chloride how many nearest neighbor chloride ions surround a cesium ion?
Last Answer : ANSWER: 8
Description : What's your opinion of, or experience with, potassium chloride as a salt (sodium chloride) substitute?
Last Answer : it’s still salt but may be better if you have blood pressure problems. It’s really going to come down to your personal taste.
Description : Using IUPAC norms write the formulae for the following: (a) Tris(ethane-1,2-diamine) chromium (III) chloride (b) Potassium tetrahydroxozincate(II) -Chemistry
Last Answer : a) [Cr(en)3] Cl3 (b) K2[Zn(OH)4]
Description : What are the chemical signals of Potassium Chloride ?
Last Answer : Chemical signal of potassium chloride KCl
Description : Number of moles of CaO required to remove hardness from 1000 litre water having 324 ppm of calcuim bicarbonate and 74.5 ppm of potassium chloride is :
Last Answer : Number of moles of CaO required to remove hardness from 1000 litre water having 324 ppm of calcuim bicarbonate and 74.5 ppm ... : A. 8 B. 4 C. 3 D. 2
Description : What is the double replacement for potassium chloride plus silver nitrate?
Last Answer : The chemical reaction is:KCl + AgNO3 = AgCl(s) + KNO3
Description : How do we separate potassium chloride from potassium chloride solution?
Last Answer : Evaporate the water from the solution.
Description : What is the method by we can separate potassium chloride from potassium chloride solution?
Description : What are the differences and purposes of the different types of ice melt such as sodium chloride, potassium chloride, calcium chloride and blends?
Last Answer : Ice Melts are for minimal damage being substained by winter conditions to your lawn.
Description : Anion gap is the difference in the plasma concentrations of (A) (Chloride) – (Bicarbonate) (B) (Sodium) – (Chloride) (C) (Sodium + Potassium) – (Chloride + Bicarbonate) (D) (Sum of cations) – (Sum of anions)
Description : Recurrent vomiting leads to loss of (A) Potassium (B) Chloride (C) Bicarbonate (D) All of these
Last Answer : Answer : B
Description : In Addison’s disease, there is excessive retention of (A) Potassium (B) Sodium (C) Chloride (D) Water
Description : Mineralocorticoids increase the tubular secretion of (A) Sodium (B) Potassium (C) Chloride (D) Bicarbonate
Description : Mineralocorticoids increase the tubular reabsorption of (A) Sodium and calcium (B) Sodium and potassium (C) Sodium and chloride (D) Potassium and chloride 224 MCQs IN BIOCHEMISTRY
Description : Mineralcorticoids regulate the metabolism of all of the following except (A) Sodium (B) Potassium (C) Calcium (D) Chloride
Description : The most important effect of aldosterone is to (A) Increase the rate of tubular reabsorption of sodium (B) Decrease the rate of tubular reabsorption of potassium (C) Decrease the reabsorption of chloride (D) Decrease the renal reabsorption of sodium
Description : Concentration of the following is higher in intracellular fluid than in extracellular fluid: (A) Sodium (B) Potassium (C) Chloride (D) Bicarbonate
Description : The action of digitalis is enhanced by (a) Sodium (b) Calcium (c) Magnesium (d) Potassium (e) Chloride
Last Answer : Ans: B
Description : During Phase 2 of action potential in cardiac cell, depolarizing current through calcium channels is balanced by (a) Delayed rectifier potassium current (b) outward chloride channel (c) Both (a) and (b) (d) None of the above
Last Answer : Ans: A
Description : A FDA – approved ingredient for protection against painful sensitivity of the teeth due to cold, heat, acids, sweets or contact is (a) Dicalcium phosphate (b) Sodium lauryl sulfate (c) 5% potassium nitrate (d) Zinc chloride (e) Calcium carbonate
Last Answer : Ans: C
Description : Municipal water in India is generally treated with (a) Chlorine (b) Potassium permanganate (c) Sodium Chloride (d) Sodium Carbonate
Last Answer : Ans:(a)
Description : Ethyl alcohol is commonly made unfit for drinking by the addition of (a) potassium cyanide (b) methyl alcohol (c) chloroform (d) potassium chloride