SO2 and NH3
CO2 and H2
NO2 and SO3
SO3 and NO
CO and H2
Correct answer is C
No explanation has been provided for this answer.
Which volume of 0.5 M H 2SO4 will exactly neutralize 20 cm 3 of 0.1 M NaOH solution?
2.0 cm 3
5.0 cm 3
6.8 cm 3
8.3 cm 3
10.4 cm 3
Correct answer is A
\(\frac{C_AV_A}{C_bV_b} = \frac{1}{2}\)
\(frac{0.5 \times V_A}{0.1 \times 20} = \frac{1}{2}\)
\(V_A = \frac{0.1 \times 20}{2 \times 0.5} = \frac{1.0}{0.5)\)
= 2cm2
Stainless steel is an alloy of
carbon, iron and lead
carbon, iron and chromium
carbon, iron and copper
carbon, iron and silver
carbon and iron only
Correct answer is B
No explanation has been provided for this answer.
Which of these metals, Mg, Fe, Pb and Cu will dissolve in dilute HCI?
All the metals
Mg ,Fe and Cu
Mg, Fe and Pb
Mg and Fe only
Mg only
Correct answer is D
No explanation has been provided for this answer.
more heat is absorbed in (l)
more heat is absorbed in (ll)
less heat is evolved in (l)
reaction (ll) proceeds faster than (l)
reaction (l) proceeds faster than (ll)
Correct answer is C
No explanation has been provided for this answer.