101. Baking powder is a mixture of baking soda and a food acid, namely:
Answer: Tartaric Acid
102. Washing soda is:
Answer: Na₂CO₃.10H₂O
103. Some metals can be beaten into thin sheets. This property is called:
Answer: Malleability
104. Lead and are comparatively poor conductors of heat.
Answer: Silver
105. A liquid non-metal is:
Answer: Bromine
106. The nature of non-metallic oxides is:
Answer: Acidic
107. Bases that are soluble in water are called:
Answer: Alkalis
108. Which of the following is a metalloid?
Answer: Tellurium
109. To measure pH, paper saturated with _______ is commonly used.
Answer: Acid-Base Indicator
110. When the pH of rainwater is less than _______, it is called acid rain.
Answer: 5.6
111. Which element is not a trivalent metal?
Answer: Bismuth
112. Which of the following is not alkaline?
Answer: HCl
113. Which element has the lowest density?
Answer: Lithium
114. Which of the following exhibits properties of both metals and non-metals?
Answer: Silicon
115. What is the chemical formula of dry ice?
Answer: CO₂
116. Which of the following is not a carbon compound?
Answer: Sodium Chloride
117. Which of the following is an organic compound?
Answer: CH₃OH
118. What is the hardest known natural substance with a very high melting point?
Answer: Diamond
119. Which of the following is an amphoteric oxide?
Answer: Aluminum Oxide
120. Which does not react with magnesium?
Answer: Cold Water