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TLS Online TPP Program

#Question id: 20151

Sodium chloride imparts a yellow colour to the Bunsen flame. This can be interpreted due to the

#XL - P Chemistry
  1. low ionization energy of sodium
  2. sublimation of metallic sodium to give yellow vapour
  3. emission of excess energy absorbed as a radiation in the visible region
  4. photosensitivity of sodium
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TLS Online TPP Program

#Question id: 20117

#XL - P Chemistry

Which is the best definition of “heat of neutralization”
TLS Online TPP Program

#Question id: 20118

#XL - P Chemistry

Compounds with high heat of formation are less stable because
TLS Online TPP Program

#Question id: 20119

#XL - P Chemistry

When a gas undergoes adiabatic expansion, it gets cooled due to
TLS Online TPP Program

#Question id: 20120

#XL - P Chemistry

For a reaction to occur spontaneously
TLS Online TPP Program

#Question id: 20121

#XL - P Chemistry

If for a given substance melting point is TB and freezing point is TA, then correct variation shown by graph between entropy change and temperature is
TLS Online TPP Program

#Question id: 20122

#XL - P Chemistry

A Beckmann thermometer is used to measure