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Total Questions : 273 | Page
27
of 28 pages
Question 261.
It is used to warm or heat the substances
Bunsen Burner
Heater
Furnace
Electric coil
See Solution
Discuss Question
Answer: Option A. ->
Bunsen Burner
Answer:
(a).
Bunsen Burner
Question 262.
It is used for evaporation of solution, in sublimation
Watch glass
China dish
Filter paper
Test tube
See Solution
Discuss Question
Answer: Option B. ->
China dish
Answer:
(b).
China dish
Question 263.
It is used to prepare gases and has two openings
Flask
Glass jar
Woolf's bottle
Beaker
See Solution
Discuss Question
Answer: Option C. ->
Woolf's bottle
Answer:
(c).
Woolf's bottle
Question 264.
Formula of Calcium Hydrogen Carbonate is
HCO₃Ca₂
Ca(HCO₃)₃
Ca(HCO₃)₂
Ca₂(HCO₃)₂
See Solution
Discuss Question
Answer: Option C. ->
Ca(HCO₃)₂
Answer:
(c).
Ca(HCO₃)₂
Question 265.
Charge on an ion is a measure of its
valency
exponential notation
formula
isotopic charges
See Solution
Discuss Question
Answer: Option A. ->
valency
Answer:
(a).
valency
Question 266.
Color gas is
methane
ethane
propane
butane
See Solution
Discuss Question
Answer: Option D. ->
butane
Answer:
(d).
butane
Question 267.
Relative formula mass of aluminum sulphate (NH₄)₂SO₄ is
132.14g/mol
113.14g/mol
139.33g/mol
143.69g/mol
See Solution
Discuss Question
Answer: Option A. ->
132.14g/mol
Answer:
(a).
132.14g/mol
Question 268.
If an acid reacts with a carbonate, product will always include
H₂O (l)
a salt (s)
CO₂ (g)
all of these
See Solution
Discuss Question
Answer: Option D. ->
all of these
Answer:
(d).
all of these
Question 269.
Symbol of Gold has been derived from its Latin name
Argentum
Argon
Aurum
Augmenten
See Solution
Discuss Question
Answer: Option C. ->
Aurum
Answer:
(c).
Aurum
Question 270.
Valency is numerically equal to
the charge of an ion
the combining power of an atom
the combining power of a radical
all of these
See Solution
Discuss Question
Answer: Option D. ->
all of these
Answer:
(d).
all of these
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