316018
Which propery of sodium is being used in street lights?
1 It shows photoelectric effect
2 It has low melting point
3 Sodium atom emits photons in the yellow region of visible spectrum, due to electrically stimulated transitions
4 Sodium vapours show golden colour
Explanation:
The property of sodium atom to emit photons in yellow region of visible spectrum, due to electrically simulated electron transitions is used in street lights.
CHXI10:THE S-BLOCK ELEMENTS
316019
Which of the following compounds is used as a chemical in certain type of fire extinguishers?
1 Baking soda
2 Soda ash
3 Washing soda
4 Caustic Soda
Explanation:
Sodium hydrogencarbonate (Baking Soda), \(\mathrm{NaHCO}_{3}\) is used as fire extinguishers
JEE - 2022
CHXI10:THE S-BLOCK ELEMENTS
316020
An alloy of \(\mathrm{Na}-\mathrm{K}\) is:
1 Liquid at room temprature
2 Used in specially designed thermometers
3 Both (1) & (2)
4 None of these
Explanation:
A characteristic feature of \({\rm{Na - K}}\) alloy.
CHXI10:THE S-BLOCK ELEMENTS
316021
Fire extinguishers contain \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and
1 \(\mathrm{NaHCO}_{3}\) and \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
2 \(\mathrm{NaHCO}_{3}\) solution
3 \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
4 \(\mathrm{CaCO}_{3}\)
Explanation:
Fire extinguisher contain \(\mathrm{H}_{2} \mathrm{SO}_{4}, \mathrm{NaHCO}_{3} \text { and } \mathrm{Na}_{2} \mathrm{CO}_{3} \text {. }\)
CHXI10:THE S-BLOCK ELEMENTS
316022
Which following statement is incorrect about the uses of Washing soda?
1 It is used in water softening, laundering and cleaning
316018
Which propery of sodium is being used in street lights?
1 It shows photoelectric effect
2 It has low melting point
3 Sodium atom emits photons in the yellow region of visible spectrum, due to electrically stimulated transitions
4 Sodium vapours show golden colour
Explanation:
The property of sodium atom to emit photons in yellow region of visible spectrum, due to electrically simulated electron transitions is used in street lights.
CHXI10:THE S-BLOCK ELEMENTS
316019
Which of the following compounds is used as a chemical in certain type of fire extinguishers?
1 Baking soda
2 Soda ash
3 Washing soda
4 Caustic Soda
Explanation:
Sodium hydrogencarbonate (Baking Soda), \(\mathrm{NaHCO}_{3}\) is used as fire extinguishers
JEE - 2022
CHXI10:THE S-BLOCK ELEMENTS
316020
An alloy of \(\mathrm{Na}-\mathrm{K}\) is:
1 Liquid at room temprature
2 Used in specially designed thermometers
3 Both (1) & (2)
4 None of these
Explanation:
A characteristic feature of \({\rm{Na - K}}\) alloy.
CHXI10:THE S-BLOCK ELEMENTS
316021
Fire extinguishers contain \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and
1 \(\mathrm{NaHCO}_{3}\) and \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
2 \(\mathrm{NaHCO}_{3}\) solution
3 \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
4 \(\mathrm{CaCO}_{3}\)
Explanation:
Fire extinguisher contain \(\mathrm{H}_{2} \mathrm{SO}_{4}, \mathrm{NaHCO}_{3} \text { and } \mathrm{Na}_{2} \mathrm{CO}_{3} \text {. }\)
CHXI10:THE S-BLOCK ELEMENTS
316022
Which following statement is incorrect about the uses of Washing soda?
1 It is used in water softening, laundering and cleaning
316018
Which propery of sodium is being used in street lights?
1 It shows photoelectric effect
2 It has low melting point
3 Sodium atom emits photons in the yellow region of visible spectrum, due to electrically stimulated transitions
4 Sodium vapours show golden colour
Explanation:
The property of sodium atom to emit photons in yellow region of visible spectrum, due to electrically simulated electron transitions is used in street lights.
CHXI10:THE S-BLOCK ELEMENTS
316019
Which of the following compounds is used as a chemical in certain type of fire extinguishers?
1 Baking soda
2 Soda ash
3 Washing soda
4 Caustic Soda
Explanation:
Sodium hydrogencarbonate (Baking Soda), \(\mathrm{NaHCO}_{3}\) is used as fire extinguishers
JEE - 2022
CHXI10:THE S-BLOCK ELEMENTS
316020
An alloy of \(\mathrm{Na}-\mathrm{K}\) is:
1 Liquid at room temprature
2 Used in specially designed thermometers
3 Both (1) & (2)
4 None of these
Explanation:
A characteristic feature of \({\rm{Na - K}}\) alloy.
CHXI10:THE S-BLOCK ELEMENTS
316021
Fire extinguishers contain \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and
1 \(\mathrm{NaHCO}_{3}\) and \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
2 \(\mathrm{NaHCO}_{3}\) solution
3 \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
4 \(\mathrm{CaCO}_{3}\)
Explanation:
Fire extinguisher contain \(\mathrm{H}_{2} \mathrm{SO}_{4}, \mathrm{NaHCO}_{3} \text { and } \mathrm{Na}_{2} \mathrm{CO}_{3} \text {. }\)
CHXI10:THE S-BLOCK ELEMENTS
316022
Which following statement is incorrect about the uses of Washing soda?
1 It is used in water softening, laundering and cleaning
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI10:THE S-BLOCK ELEMENTS
316018
Which propery of sodium is being used in street lights?
1 It shows photoelectric effect
2 It has low melting point
3 Sodium atom emits photons in the yellow region of visible spectrum, due to electrically stimulated transitions
4 Sodium vapours show golden colour
Explanation:
The property of sodium atom to emit photons in yellow region of visible spectrum, due to electrically simulated electron transitions is used in street lights.
CHXI10:THE S-BLOCK ELEMENTS
316019
Which of the following compounds is used as a chemical in certain type of fire extinguishers?
1 Baking soda
2 Soda ash
3 Washing soda
4 Caustic Soda
Explanation:
Sodium hydrogencarbonate (Baking Soda), \(\mathrm{NaHCO}_{3}\) is used as fire extinguishers
JEE - 2022
CHXI10:THE S-BLOCK ELEMENTS
316020
An alloy of \(\mathrm{Na}-\mathrm{K}\) is:
1 Liquid at room temprature
2 Used in specially designed thermometers
3 Both (1) & (2)
4 None of these
Explanation:
A characteristic feature of \({\rm{Na - K}}\) alloy.
CHXI10:THE S-BLOCK ELEMENTS
316021
Fire extinguishers contain \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and
1 \(\mathrm{NaHCO}_{3}\) and \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
2 \(\mathrm{NaHCO}_{3}\) solution
3 \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
4 \(\mathrm{CaCO}_{3}\)
Explanation:
Fire extinguisher contain \(\mathrm{H}_{2} \mathrm{SO}_{4}, \mathrm{NaHCO}_{3} \text { and } \mathrm{Na}_{2} \mathrm{CO}_{3} \text {. }\)
CHXI10:THE S-BLOCK ELEMENTS
316022
Which following statement is incorrect about the uses of Washing soda?
1 It is used in water softening, laundering and cleaning
316018
Which propery of sodium is being used in street lights?
1 It shows photoelectric effect
2 It has low melting point
3 Sodium atom emits photons in the yellow region of visible spectrum, due to electrically stimulated transitions
4 Sodium vapours show golden colour
Explanation:
The property of sodium atom to emit photons in yellow region of visible spectrum, due to electrically simulated electron transitions is used in street lights.
CHXI10:THE S-BLOCK ELEMENTS
316019
Which of the following compounds is used as a chemical in certain type of fire extinguishers?
1 Baking soda
2 Soda ash
3 Washing soda
4 Caustic Soda
Explanation:
Sodium hydrogencarbonate (Baking Soda), \(\mathrm{NaHCO}_{3}\) is used as fire extinguishers
JEE - 2022
CHXI10:THE S-BLOCK ELEMENTS
316020
An alloy of \(\mathrm{Na}-\mathrm{K}\) is:
1 Liquid at room temprature
2 Used in specially designed thermometers
3 Both (1) & (2)
4 None of these
Explanation:
A characteristic feature of \({\rm{Na - K}}\) alloy.
CHXI10:THE S-BLOCK ELEMENTS
316021
Fire extinguishers contain \(\mathrm{H}_{2} \mathrm{SO}_{4}\) and
1 \(\mathrm{NaHCO}_{3}\) and \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
2 \(\mathrm{NaHCO}_{3}\) solution
3 \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
4 \(\mathrm{CaCO}_{3}\)
Explanation:
Fire extinguisher contain \(\mathrm{H}_{2} \mathrm{SO}_{4}, \mathrm{NaHCO}_{3} \text { and } \mathrm{Na}_{2} \mathrm{CO}_{3} \text {. }\)
CHXI10:THE S-BLOCK ELEMENTS
316022
Which following statement is incorrect about the uses of Washing soda?
1 It is used in water softening, laundering and cleaning