Methyi orange is

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Question:
Methyi orange is

1.Pink in acidic medium, yellow in basic medium

2.Yellow in acidic medium, pink in basic medium

3.Colourless in acidic medium, pink in basic medium

4.Pink in acidic medium colourless in basic medium

Posted Date:-2022-01-12 08:03:50

More MCQS Questions and answers

  1. Alkaline earth metals include :
  2. Arrange the following as per instruction given in the brackets K, CI, Na, S, Si (increasing order of atomic size)
  3. Brine is an:
  4. Covalent bond is formed between :
  5. During ionisation metals lose electrons, this change can be called
  6. How many valence electrons are present in C?
  7. Hydroxide of this metal is soluble in sodium hydroxide solution :
  8. Identify the element belonging to third period and 17th group of the periodic table.
  9. Identify the weak electrolyte from the following
  10. If two compounds have the same empirical formula but different molecular formulae, they must have :
  11. In terms of acidic strength, which one of the following is in the correct increasing order?
  12. In terms of acidic strength, which one t thee tiblwmg 1S in the orTect increasing order?
  13. Ionic bond is present in which of the following species:
  14. Methyi orange is
  15. Name the reagent from the following which can be used to distinguish zine nitrate solution from magnesium nitrate
  16. Select the element in period 3 whose electron affinity is zero :
  17. The formula which expresses the actual number of each kind of atom present in the molecule of a compound is called:
  18. The formula which gives the simple ratio of each kind of atoms present in the molecule of a compound is called :
  19. The hydroxide which is soluble in excess of NaOH is:
  20. The metallic electrode which does not take part in an electrolytic reaction? (Inert electrode)
  21. The molecule containing a triple covalent bond is
  22. The one which is composed of all the three kinds of bond (ionic; covalent and coordinate bond) is:
  23. The particles present in strong electrolytes are:
  24. The precipitate of which of the following compounds is soluble in excess of ammonia solution?
  25. The starting material which takes part in chemical reaction is called:
  26. The type of bonding in HCl molecule is :
  27. What happens when a solution of an acid is mixed with a solution of a base in a test tube?
  28. What indicates the actual number of constituent atoms in a molecule?
  29. What is formed when zinc reacts with sodium hydroxide?
  30. What is the electronic configuration of Li ?
  31. When dilute sodium chloride is electrolysed using graphite electrodes, which cation is discharged at the cathode most readily?
  32. When two compounds R and S have same percentage composition. Then the compounds R and S are:
  33. Which is the most electronegative?
  34. Which of the following is the atomic number of a elemerit that tKTs basic oxide?
  35. Which of these will act as a non electrolyte ?
  36. Which one of the following salt solutions on reaction with excess of ammonium hydroxide solution results finally in dissolution of the precipitate first formed ?
  37. Which one of the following salt solutions on reaction with excess sodium hydroxide solution gives a clear solution finally ?
  38. Which one of the following salts does not contain water of crystallisation?
  39. Why do atoms share electrons in covalent bonds?
  40. Write the formula of the compound between B and H.
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