A sample of chloroform before being used as an anaesthetic agent is tested by
Options
(a) Fehling’s solution (b) ammoniacal cuprous chloride (c) silver nitrate solution in the cold (d) silver nitrate solution […]
Potassium is stored in
Options
(a) alcohol (b) water (c) kerosene (d) liquid ammonia
Correct Answer:
kerosene
Explanation:
On exposure to moist air , K tarnish quickly . Therefore K is always kept under […]
How many edta molecules can surround calcium
Options
(a) 2 (b) 1 (c) 3 (d) 8
Correct Answer:
1
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Which of the following is not a ferromagnetic substance
Options
(a) Cobalt (b) Nickel (c) Manganese (d) Iron
Correct Answer:
Manganese
Explanation:
Fe, Co, Ni are ferromagnetic subtances since they show permanent magnetism […]
One mole of magnesium nitride on reaction with excess of water gives
Options
(a) 1 mole of ammonia (b) 1 mole of nitric acid (c) 2 mole of nitric acid (d) 2 mole […]
If one strand of DNA has the sequence ATGCTTGA,the sequence in the complementary stand would be
Options
(a) TACGAACT (b) TCCGAACT (c) TACGTACT (d) TACGTAGT
Correct Answer:
TACGAACT
Explanation:
No explanation available. Be […]
The elements with atomic number 9,17,35,53,85 are called
Options
(a) inert gases (b) halogens (c) chalcogens (d) cnicogens
Correct Answer:
halogens
Explanation:
No explanation available. Be the first to write the explanation for […]
The solubility product of a sparingly soluble salt AB at room temperature is 1.21 x 10⁻⁶.Its molar solubility is
Options
(a) 1.1x 10⁻³ mol L⁻¹ (b) 1.21 x 10⁻⁶ mol L⁻¹ (c) 1.01 […]
Charge Q is divided into two parts which are then kept some distance apart. The force between them will be maximum, if the two parts are having the charge
Options
(a) Q/2 each […]
If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A in 2×10⁻³ s, then the coefficient of self-induction is
Options
(a) 2×10⁻³ H […]
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