Description : Which of the following activates Hageman factor in blood clotting? B A. Kinins B. Negatively charged surfaces C. Complement C5a D. Positively charged collagen
Last Answer : Negatively charged surfaces
Description : When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe(OH)_(3)` sol in suitable amounts
Last Answer : When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe ... colloids. D. They become negatively charged colloids.
Description : When water breaks apart it releases positively charged hydrogen ions and negatively charged ions?
Last Answer : Need answer
Description : The true statement about solutions of amino acids at physiological pH is (A) All amino acids contain both positive and negative charges (B) All amino acids contain positively charged side chains ... amino acids contain only positive charge (D) All amino acids contain negatively charged side chains
Last Answer : Answer : A
Description : A good conductor while carrying current is - (1) alternately charged positive and negative (2) negatively charged (3) positively charged (4) electrically neutral
Last Answer : (2) negatively charged Explanation: Electrons carry current in a good conductor of electricity and they are negatively charged. This makes a good electrical conductor negatively charged.
Description : X-rays are – (1) positively charged particles (2) negatively charged particles (3) neutral particles (4) None of these
Last Answer : (3) neutral particles Explanation: Like gamma rays and neutrons, X-rays are electrically neutral. They have neither a positive nor a negative charge. They cannot be accelerated or made to ... particles (electrons and positrons) and heavy charged particles (protons, alpha particles and heavier ions).
Description : A wire carrying current is – (1) positively charged (2) negatively charged (3) neutral (4) charged with a type depending upon current strength
Last Answer : (3) neutral
Description : SnO2 forms a positively charged colloidal sol in acidic medium and a negatively charged sol in the basic medium. Why ?
Last Answer : Ans. SnO2 is amphoteric in nature. It reacts with acid eg. HCl to form SnCl4 in the solution. The common Sn4+ ions are adsorbed on the surface of SnO2 particles giving them a positive ... solution. The stannate ions are adsorbed on the surface of SnO2 particles giving them a negative charge.
Description : When one material is rubbed against the other, then it becomes electrically A. neutral B. charged C. positively charged D. negatively charged
Last Answer : charged
Description : What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ? (a) The smaller the fragment size, the farther it moves. (b) Positively charged fragments move to farther end. ... charged fragments do not move. (d) The larger the fragment size, the farther it moves.
Last Answer : (a) The smaller the fragment size, the farther it moves
Description : DNA fragments are (a) negatively charged (b) neutral (c) either positively or negatively charged depending on their size (d) positively charged
Last Answer : (a) negatively charged
Description : Phosphorus and nitrogen ions generally get depleted in soil because they usually occur as (a) neutral ions (b) negatively charged ions (c) positively charged ions (d) both positively and negatively charged but disproportionate mixture.
Last Answer : (b) negatively charged ions
Description : Aerosols present in atmospheric air may be (A) Positively charged (B) Negatively charged (C) Neutral (D) Combination of all (A), (B) & (C)
Last Answer : (D) Combination of all (A), (B) & (C)
Description : A zwitterion is (a) an ion that is positively charged in solution (b) an ion that is negatively charged in solution (c) a compound that can ionize both as a base and an acid. (d) a carbohydrate with an electrical charge.
Last Answer : a compound that can ionize both as a base and an acid
Description : X-rays are (A) Positively charged (B) Negatively charged (C) Neutral (D) Of higher wavelength than visible light
Last Answer : C) Neutral
Description : What is the criterion for DN A fragments movement on agarose gel during gel electrophoresis ? (1) The smaller the fragment size, the farther it moves (2) Positively charged fragments move to farther ... Negatively charged fragments do not move (4) The larger the fragment size, the farther it moves
Last Answer : (1) The smaller the fragment size, the farther it moves
Description : DNA fragments are: (1) Negatively charged (2) Neutral (3) Either positively or negatively charged depending on their size (4) Positively charged
Last Answer : (1) Negatively charged
Description : The true statement about solutions of amino acids at physiological pH is (A) All amino acids contain both positive and negative charges (B) All amino acids contain positively charged side chains ... amino acids contain only positive Charge (D) All amino acids contain negatively charged side chains
Last Answer : (A) All amino acids contain both positive and negative charges
Description : A high voltage applied to a gas discharge tube containing neon gas at very low pressure causes a current to flow through the tube. Which one of the following are the particles that flow towards the ... Are they w) electrons x) protons y) negatively charged neon ions z) positively charged neon ions
Last Answer : ANSWER: Z -- POSITIVELY CHARGED NEON IONS
Description : X–rays are (1) positively charged particles (2) negatively charged particles (3) neutral particles (4) None of these
Last Answer : neutral particles
Description : A good conductor while carrying current is (1) alternately charged positive and negative (2) negatively charged (3) positively charged (4) electrically neutral
Last Answer : negatively charged
Description : A wire carrying current is (1) positively charged (2) negatively charged (3) neutral (4) charged with a type depending upon current strength
Last Answer : neutral
Description : Do you think this ad positively or negatively affects this company?
Last Answer : Sort of hilarious, but not a good ad. I can’t say why. I guess I just don’t like the “in your face” ness of it.
Description : DNA topoisomerase I of E. coli catalyses (A) Relaxation of negatively supercoiled DNA (B) Relaxation of positively supercoiled DNA (C) Conversion of negatively supercoiled DNA into positively supercoiled DNA (D) Conversion of double helix into supercoiled DNA
Description : DNA A protein can bind only to (A) Positively supercoiled DNA (B) Negatively supercoiled DNA (C) Both (A) and (B) (D) None of these
Last Answer : Answer : B
Description : Total fixed cost curve is - (1) Vertical (2) Horizontal (3) Positively Sloping (4) Negatively sloping
Last Answer : (2) Horizontal Explanation: The Total Fixed Cost Curve is a curve that graphically represents the relation between total fixed cost incurred by a firm in the short-run product of a good or service and the ... cost are, in fact, fixed, the total fixed cost curve is, in fact, a horizontal line.
Description : Under increasing returns the supply curve is - (1) positively sloped from is to right (2) negatively sloped from left to right (3) parallel to the quantity-axis (4) parallel to the price -axis
Last Answer : (1) positively sloped from is to right Explanation: Supply curve, in economics, is a graphic representation of the relationship between product price and quantity of product that a seller is willing and ... i.e as the price of a commodity increases in the market, the amount supplied increases).
Description : Demand curve of a firm under perfect competition is : (1) horizontal to ox-axis (2) negatively sloped (3) positively sloped (4) U - shaped
Last Answer : (1) horizontal to ox-axis Explanation: Under Perfect Competition, the firm faces a horizontal demand curve. It can sell any quantity desired at the market price, but cannot sell anything above the market price.
Description : Stern is usually - (1) Positively Phototropic (2) Negatively Phototropic (3) Negatively geotropic (4) Positively acrotropic
Last Answer : (1) Positively Phototropic Explanation: Tropism is a growth movement whose direction is determined by the direction from which the stimulus strikes the plant. Most stems are positively phototropic, while most roots are said to be negatively phototropic.
Description : Which of the following statements is true when the CPA has been engaged to do an attestation engagement? a. The CPA firm is engaged and paid by the client; therefore, the firm has primary responsibility ... . d. As long as CPA firms are competent, it is not required that they remain unbiased.
Last Answer : The CPA firm is engaged and paid by the client, but the primary beneficiaries of the audit are the statement users
Description : Thermococcus, Methanococcus and Methano- bacterium exemplify (a) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria (b) bacteria that ... that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
Last Answer : (c) archaebacteria that contain protein homologous to eukaryotic core histones
Description : Which method of digital data encoding does NOT return the tape to neutral between pulses but, instead, saturates the tape positively or negatively as the incoming data changes between zero and one?
Last Answer : Non-return-to-zero (NRZ) encoding.
Description : Research confirms that participation and conflict are: (a) positively correlated. (b) counterproductive. ; (c) negatively correlated. ; (d) always present together.
Last Answer : (a) positively correlated.
Description : Marginal cost curve is (a) Positively sloped ; (b) Negatively sloped ; (c) Parallel to X axis ; (d) Parallel to Y axis
Last Answer : (a) Positively sloped
Description : Normal Probability Curve should be (A) Positively skewed (B) Negatively skewed (C) Leptokurtic skewed (D) Zero skewed
Last Answer : (D) Zero skewed
Description : Stem is usually (1) Positively Phototropic (2) Negatively Phototropic (3) Negatively geotropic (4) Positively acrotropic
Last Answer : Positively Phototropic
Description : Under increasing returns the supply curve is (1) positively sloped from left to right (2) negatively sloped from left to right (3) parallel to the quantity-axis (4) parallel to the price -axis
Last Answer : positively sloped from left to right
Description : Demand curve of a firm under perfect competition is : (1) horizontal to ox-axis (2) negatively sloped (3) positively sloped (4) U – shaped
Last Answer : horizontal to ox-axis
Description : Total fixed cost curve is (1) Vertical (2) Horizontal (3) Positively Sloping (4) Negatively sloping
Last Answer : Horizontal
Description : Which of the following is a negatively charged particle of an atom ?
Last Answer : An electron is a negatively charged particle in an atom.
Description : Effective electrolyte to cause the flocculation of a negatively charged arsenium sulphide colloid is :
Last Answer : Effective electrolyte to cause the flocculation of a negatively charged arsenium sulphide colloid is : A. `NaCl` B. ` ... 3)Fe(CN)_(6)` D. `AlCl_(3)`
Description : If an atom is negatively charged what must have occurred?
Last Answer : This atom has won electrons.
Description : The amino acid which has a pK near 4 and thus is negatively charged at pH 7 is (A) Alanine (B) Glutamic acid (C) Glutamine (D) Aspargine
Description : Consider the following statements: 1. The nuclear forces are short range forces. 2. Alpha rays emitted by a radionuclide are helium nucleus. 3. Gamma rays are electromagnetic waves. 4. Beta rays emitted by a radionuclide are negatively ... 1, 3 and 4 only (c) 1, 2, 3 and 4 (d) 1, 2 and 3 only
Last Answer : Ans:(c)
Description : What particles move around the nucleus of an atom and are negatively charged? (1) Electrons (2) Protons (3) Positrons (4) Neutrons
Last Answer : (1) Electrons Explanation: Circling around outside the nucleus are tiny little particles called electrons. Electrons have a negative charge. Electrons spin as they circle the nucleus billions of times every ... or lose energy, they jump between energy levels as they are rotating around the nucleus.
Description : Which of the following particle being charged negatively?
Last Answer : Electron
Description : ------are negatively (-) charged particles of an atom? A. Protons B. Neutrons C. Electrons (Answer) D. None of These
Last Answer : C. Electrons (Answer)
Description : Given below are four statements pertaining to separation of DNA fragments using gel electrophoresis. Identify the incorrect statements. (i) DNA is negatively charged molecule and so it is loaded on gel towards the anode terminal. (ii) DNA ... (iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iv)
Last Answer : (d) (i), (ii) and (iv)
Description : Negatively charged ions are called a. anions b. cations c. both d. none of them
Last Answer : anions
Description : Which one of the following is a flocculating agent for a negatively charged drug? (A) Aluminium chloride (B) Bentonite (C) Tragacanth (D) Sodium biphosphate
Last Answer : (A) Aluminium chloride