by Sunday | Apr 21 | Chemistry NECO
A. CH3OH B. CH3COOH C. CH3CHOH D. C4H10 E. (CH3)3CH Correct Answer: Option D – C4H10
by Sunday | Apr 21 | Chemistry NECO
A. Becquerel. B. Bohr. C. de Broglie. D. Rutherford. E. Thompson. Correct Answer: Option B – Bohr
by Sunday | Apr 21 | Chemistry NECO
A. ductile: B. malleable C. conduct heat and electricity D. have many oxidation states E. high melting points anti boiling points Correct Answer: Option D – have many oxidation states
by Sunday | Apr 21 | Chemistry NECO
I. it alters the activation energy of a reaction II. it is effective in a reaction but cannot initiate a reaction III, it affects the equilibrium of a reversible reaction IV. it affects the overall reaction A. I and II only B. I, II and III only C. II and III only D....
by Sunday | Apr 20 | Chemistry NECO
A. covalent bonds. B. dative bonds. C. dipole-dipole bonds. D. electrovalent (ionic) bonds E. hydrogen bonds. Correct Answer: Option E – hydrogen bonds.
by Sunday | Apr 20 | Chemistry NECO
A. 1:01 B. 1:01 C. 2:01 D. 2:03 E. 3:01 Correct Answer: Option A – 1:01
by Sunday | Apr 20 | Chemistry NECO
A. 3 B. 9 C. 10 D. 18 E. 32 Correct Answer: Option D = 18
by Sunday | Apr 20 | Chemistry NECO
A. black B. blue C. green D. white E. yellow Correct Answer: Option A – black
by Sunday | Apr 20 | Chemistry NECO
A. CH3COOH B. CH3COONaCCH3OH C. CH3OH D. C2H5OH E. C3H7COONa Correct Answer: Option A – CH3COOH
by Sunday | Apr 20 | Chemistry NECO
A. aluminum and copper. B. copper and tin C. iron and aluminum. D. lead and antimony. E. lead and tin. Correct Answer: Option E – lead and tin.