1. Which one is used as indicator in the neutralization reaction between weak acid and strong base?
A. Methyl orangeB. Methyl redC. PhenolphthaleinD. None
2. Which is the total current flowing through the circuit shown?
A. 2.0 AB. 3.0 AC. 2.25 AD. 1.5 A Req = 4 + 4 + ( 1 6 + 1 3 )−1 = 10Ω I = E R = 20 10 A = 2A
3. compound’s From what pH value, compound will start turning to a positive ion? NH3 pKa = 9.2. NH3
A. 9.2B. 8.2C. 10.2D. 7.2 H + NH + 4 9.2
4. Which one is the next part of primary bronchus in human respiratory system?
A. Lobar bronchusB. LobuleC. Terminal bronchioleD. Alveolus
5. The train _____ arrive at 11:30 but it was an hour late.
A. supposed toB. is supposed toC. was supposed toD. has supposed to
6. Which one is applicable for the heredity of the flower color of Sandhyamalati?
A. Incomplete dominanceB. CodominanceC. Complementary geneD. Dominant epistasis