Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. JAMB
  4. /
  5. Chemistry
  6. /
  7. 1999
  8. /
  9. Q0
Question 0

Hydrogen is used in oxy-hydrogen flames for melting metals because it

  • A.evolves a lot of heat when burnt
  • B.combines explosively with oxygen
  • C.is a very light gas
  • D.is a rocket fuel
  • E.
Objective

Question details

Exam body
JAMB
Subject
Chemistry
Year
1999
Question no.
#0
Type
Objective
Previous · Q0A pair of compounds that can be used to generate a gas which has physiological… Next · Q0 What properties of duralumin make it more useful than its constituent metals?

More from this paper

  • Q0200cm 3 each of 0.1M solutions of lead (II) trioxonitrate (V) and hydrochloric…
  • Q056.00cm 3 of a gas at S.T.P. weighed 0.11g. What is the vapour density of the…
  • Q0Which of the following gases will diffuse fastest when passed through a porous…
  • Q0Which is the temperature of a given mass of a gas initially at 0°C and 9 atm, if…
  • Q0Which of the following will have its mass increased when heated in air?
  • Q0Mg (s) + 2HCl (aq) → MgCl 2(aq) + H 2(g) From the equation above, the mass of…
See all Chemistry 1999 questions
Teacha

Africa's learning & exam readiness platform. Built for students, tutors, and schools.

Platform

  • Courses
  • Mock Exams
  • Past Questions

For You

  • I'm a Tutor
  • I'm a School
  • Pricing

© 2025 Teacha. Built for African learners, tutors, and schools. Teacha is not affiliated with WAEC, NECO, or JAMB. All past questions are sourced from publicly available materials.

Privacy PolicyTerms of UseCookie Policy